Fix image inputs and @ file mentions for backend provider

[ki-cooley]

Summary

• Images: Extract base64 image data from request messages in BackendProvider, send them separately over WebSocket, and construct proper Anthropic multimodal content blocks in agent.ts so Claude receives actual images instead of raw JSON with base64 strings
• @ file mentions: Skip RAG/embedding search in PromptGenerator when using the backend provider — pass file paths instead so the agent reads them via vault_read, avoiding crashes from unconfigured embedding system
• Tracing: Add [ImageFlow] console.log instrumentation at key points to diagnose image persistence issues

Changes

File	What changed
src/core/backend/protocol.ts	Add images field to PromptMessage
backend/src/protocol.ts	Mirror images field
src/utils/chat/promptGenerator.ts	Add isBackendProvider(), skip RAG for backend, pass file paths
src/core/backend/BackendProvider.ts	New extractPromptAndImages() replaces old prompt conversion
src/core/backend/WebSocketClient.ts	Accept images param in sendPrompt()
backend/src/server.ts	Forward msg.images to runAgent()
backend/src/agent.ts	Accept images, build multimodal content blocks, add memory management
src/components/chat-view/Chat.tsx	Image flow tracing
src/components/chat-view/chat-input/ChatUserInput.tsx	Image flow tracing

Test plan

• Build passes (npm run build)
• Text-only messages work as before (no regression)
• @ file mentions show as file paths in prompt, no RAG errors, agent reads via vault_read
• Image paste/upload sends multimodal content to Claude (verify via [ImageFlow] logs)
• Deploy backend to Railway and verify WebSocket connection

🤖 Generated with Claude Code

Summary by CodeRabbit

Release Notes

• New Features

  • Integrated Claude-powered backend agent for enhanced chat capabilities with WebSocket-based communication.
  • Added activity tracking visualization showing tool usage, file operations, and thinking processes.
  • Introduced interspersed content layout mixing text responses with tool activities.
  • Added support for skills and slash commands from vault configuration.
  • New diff viewer for file edits with revert functionality.
  • Backend provider option for chat models.

• UI/UX Improvements

  • Enhanced mobile keyboard handling with improved input experience.
  • Live streaming activity indicators with status tracking.

• Branding

  • Renamed project from "Smart Composer" to "Claudsidian."

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR introduces a complete backend agent system for the Claudsidian plugin, adding a Node.js WebSocket server with RPC-based vault operations, activity tracking UI components, backend LLM provider integration, and rebranding from Smart Composer to Claudsidian across the codebase.

Changes

Cohort / File(s)	Summary
Backend Server Infrastructure backend/src/index.ts, backend/src/server.ts, backend/src/protocol.ts	HTTP/WebSocket server with token authentication, bidirectional RPC protocol for vault operations, and connection lifecycle management with graceful shutdown.
Backend Agent Implementation backend/src/agent.ts, backend/src/mock-agent.ts, backend/src/vault-tools.ts	Claude-based agent with dynamic system prompt assembly, skill loading, MCP server orchestration, tool execution lifecycle (tool_start/end events), streaming response generation, and mock mode for testing.
Backend Configuration & Dependencies backend/package.json, backend/tsconfig.json, backend/Dockerfile, backend/.env.example, backend/.gitignore, backend/railway.json, backend/README.md	Node.js project setup with npm scripts, TypeScript configuration, Docker containerization, Railway deployment config, environment variables documentation, and development guide.
Backend Testing backend/test/automated-test.ts, backend/test/test-client.ts	WebSocket test harness with prompt/RPC workflows, mock vault implementation, REPL-driven interactive client, and test suite covering vault operations and health checks.
Frontend WebSocket Client src/core/backend/WebSocketClient.ts, src/core/backend/instance.ts, src/core/backend/protocol.ts	WebSocket client with reconnection logic, per-request streaming handlers, RPC correlation, activity tracking, message queueing, and browser-compatible utilities.
Backend Provider & RPC Handler src/core/backend/BackendProvider.ts, src/core/backend/VaultRpcHandler.ts, src/core/backend/ConflictManager.ts, src/core/backend/EditHistory.ts, src/core/backend/tool-result-formatter.ts	LLM provider implementation for backend agent, RPC dispatch for vault operations, conflict detection on concurrent edits, edit snapshot/revert tracking, and tool result formatting with batching.
Activity & Content UI Components src/components/chat-view/ActivityAccordion.tsx, src/components/chat-view/ActivityItem.tsx, src/components/chat-view/EditDiffBlock.tsx, src/components/chat-view/InterspersedContent.tsx	Activity display accordion with streaming state, expandable activity items with timers and results, file diff visualization with revert controls, and interspersed content blocks mixing text and activity groups.
Chat View Updates src/components/chat-view/Chat.tsx, src/components/chat-view/AssistantToolMessageGroupItem.tsx, src/components/chat-view/ToolMessage.tsx, src/components/chat-view/chat-input/*	Auto-scroll on resize and double requestAnimationFrame, activity extraction/aggregation pipeline, interspersed content rendering path, backend tool filtering, image debugging logs, and mobile keyboard UX.
Type Definitions src/types/chat.ts, src/types/chat-model.types.ts, src/types/provider.types.ts, src/types/llm/response.ts	New ActivityType, ActivityStatus, ActivityEvent, and ContentBlock types for activity tracking; extends ChatAssistantMessage with contentBlocks and activities; adds backend provider schema and chat model variant.
Provider & LLM Integration src/core/llm/manager.ts, src/core/mcp/mcpManager.ts, src/constants.ts	Backend provider factory case in manager, mobile gating removal from MCP with fallback error handling, new PROVIDER_TYPES_INFO.backend entry, DEFAULT_PROVIDERS backend entry, and recommended model list updates.
Settings & Configuration src/settings/schema/setting.types.ts, src/settings/schema/settings.ts, src/settings/schema/migrations/12_to_13.ts, src/settings/schema/migrations/index.ts	New externalResourceDir field in settings schema, version bump to 13 with migration function, parseSmartComposerSettings refactor with intermediate variable.
Settings UI src/components/settings/sections/*, src/components/settings/modals/*	Backend provider fields (URL, auth token) in ProviderFormModal; backend exclusion from chat/embedding model modals; external resource directory input in ChatSection; provider edit/delete actions refactored.
Utilities & Hooks src/hooks/useSkills.ts, src/utils/chat/promptGenerator.ts, src/utils/chat/responseGenerator.ts	Skills and slash commands loading hook with search; backend path in prompt generation bypassing file reads, using vault_read instructions, and handling mentionables/images; activity/contentBlock merging in response generator.
Plugin Integration src/main.ts, manifest.json, src/ChatView.tsx, src/components/modals/*	ConflictManager and EditHistory initialization, RPC handler wiring, automatic backend connection, graceful cleanup, rebranding text updates (manifest.json, modal strings, settings links).
Markdown & Code Components src/components/chat-view/MarkdownCodeComponent.tsx	Code block expansion: truncate long blocks to 15 lines, add expand/collapse button with ChevronDown/ChevronUp icons.
Styling styles.css	New component styles for activity accordion, activity items with timers/icons, edit diff blocks with stats and diffs, interspersed content layout, slash commands, and code-block expansion button; updated template menu layout.
Branding & Documentation manifest.json, CLAUDE.md, .claude/settings.json, docs/interspersed-layout-spec.md, railway.toml	Plugin rename to Claudsidian, comprehensive project context doc, Claude API permissions block, interspersed layout design spec, and root-level Railway deployment config.
Root Config package.json, railway.toml	Trailing newline adjustment in package.json; Railway build/deploy config (Dockerfile build, healthcheck, restart policy).

Sequence Diagram(s)

sequenceDiagram
    actor User
    participant FrontendClient as Frontend<br/>(Obsidian Plugin)
    participant WSServer as WebSocket Server<br/>(backend/server)
    participant Agent as Agent Loop<br/>(backend/agent)
    participant VaultOps as Vault Operations<br/>(RPC Handler)

    User->>FrontendClient: Submit prompt with context
    FrontendClient->>WSServer: PromptMessage (token auth)
    WSServer->>Agent: runAgent(prompt, bridge)
    Agent->>Agent: Build system prompt<br/>(memory, skills, context)
    Agent->>Agent: Stream Claude SDK events
    Agent->>WSServer: text_delta
    WSServer->>FrontendClient: TextDeltaMessage
    FrontendClient->>User: Display streaming text
    
    alt Tool Execution
        Agent->>Agent: tool_start event
        WSServer->>FrontendClient: ToolStartMessage
        FrontendClient->>User: Show activity indicator
        
        Agent->>WSServer: RpcRequestMessage<br/>(vault_read/write/etc)
        WSServer->>FrontendClient: RpcRequestMessage
        FrontendClient->>VaultOps: Execute vault RPC
        VaultOps->>VaultOps: File operation<br/>(read/edit/search)
        VaultOps->>FrontendClient: RpcResponseMessage (result)
        FrontendClient->>WSServer: RpcResponseMessage
        Agent->>Agent: Process tool result<br/>tool_end event
        WSServer->>FrontendClient: ToolEndMessage
        FrontendClient->>User: Update activity,<br/>show diff/result
    end
    
    Agent->>Agent: complete event
    WSServer->>FrontendClient: CompleteMessage
    FrontendClient->>User: Finalize response,<br/>enable apply actions

Loading

Estimated code review effort

🎯 5 (Critical) | ⏱️ ~120 minutes

Possibly related PRs

• #494: Settings migration from version 12 to 13 with externalResourceDir field addition and default chat model updates.
• #513: New LLM provider type integration with provider factory and manager extensions.
• #372: MCP tool-calls integration with overlapping protocol, vault-tools, and WebSocket streaming lifecycle implementations.

Suggested reviewers

• kevin-on

Poem

🐰 A backend hops in, with WebSocket in hand,
Vaults dance through RPC across the code land,
Activities bloom like clover so bright,
Claudsidian crafts with redbranded might,
Skills skip, edits flip—hop, hop, hooray!

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 49.15% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Fix image inputs and @ file mentions for backend provider' clearly describes the two main fixes: image handling and file mention support.
Description check	✅ Passed	The description includes a clear summary, organized file-by-file change list, and test plan checklist. It follows the template structure with all major required sections present.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[coderabbitai]

Actionable comments posted: 11

Note

Due to the large number of review comments, Critical, Major severity comments were prioritized as inline comments.

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (2)

src/components/chat-view/chat-input/plugins/template/TemplatePlugin.tsx (1)

51-61: ⚠️ Potential issue | 🟡 Minor

Remove TemplateTypeaheadOption—it is unused dead code.

The class is defined but never referenced anywhere in the codebase and is not exported. The "backwards compatibility" comment is misleading since the class cannot be used by external code. Remove it to reduce confusion.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/chat-input/plugins/template/TemplatePlugin.tsx`
around lines 51 - 61, Remove the dead, unused class TemplateTypeaheadOption (and
its leading "Keep old class for backwards compatibility" comment); delete the
entire class declaration that extends MenuOption and references Template
(constructor, properties name and template) since it's not exported or
referenced anywhere—ensure there are no remaining references to
TemplateTypeaheadOption and run the typechecker to confirm nothing else depends
on it.

src/components/chat-view/ToolMessage.tsx (1)

28-49: ⚠️ Potential issue | 🟠 Major

Filter backend tool calls in getToolMessageContent for consistency with UI rendering.

The ToolMessage component intentionally filters out backend__ tools (lines 62-64) because they "clutter the UI and their results are shown inline as formatted content instead." However, getToolMessageContent includes all tool calls without filtering. Since this function is used in the CopyButton component to generate clipboard content, backend tools will leak into the copied text even though they're hidden from the rendered UI. Apply the same !toolCall.request.name.startsWith('backend__') filter to maintain consistency between what users see and what gets copied.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/ToolMessage.tsx` around lines 28 - 49, Update
getToolMessageContent so it filters out backend tool calls the same way the UI
does: before mapping toolCalls, exclude any toolCall whose request.name starts
with 'backend__' (i.e., apply a filter like
toolCall.request.name.startsWith('backend__') === false). This keeps
getToolMessageContent (used by CopyButton) consistent with the ToolMessage
rendering and prevents backend__ tool entries from appearing in copied clipboard
text; modify the logic that iterates over message.toolCalls in
getToolMessageContent to perform this filter first.

🟡 Minor comments (27)

src/components/chat-view/chat-input/plugins/template/TemplatePlugin.tsx-161-171 (1)

161-171: ⚠️ Potential issue | 🟡 Minor

Template branch doesn't handle nodeToRemove === null, unlike skill and command branches.

Both the skill (line 179) and command (line 195) branches have a fallback that appends to root when nodeToRemove is null. The template branch silently does nothing in that case. If this edge case can occur, the template content will be lost.

Proposed fix for consistency

         if (nodeToRemove) {
           const parent = nodeToRemove.getParentOrThrow()
           parent.splice(nodeToRemove.getIndexWithinParent(), 1, parsedNodes)
           const lastNode = parsedNodes[parsedNodes.length - 1]
           lastNode.selectEnd()
+        } else {
+          const root = $getRoot()
+          for (const node of parsedNodes) {
+            root.append(node)
+          }
+          const lastNode = parsedNodes[parsedNodes.length - 1]
+          lastNode.selectEnd()
         }

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/chat-input/plugins/template/TemplatePlugin.tsx`
around lines 161 - 171, The template branch for selectedOption.type ===
'template' currently only inserts parsed nodes when nodeToRemove exists, so when
nodeToRemove === null the template content is dropped; update the block handling
selectedOption.template to mirror the skill/command branches by adding a
fallback that, if nodeToRemove is null, appends parsedNodes to the editor root
(e.g., root.append(parsedNodes) or equivalent), then selectEnd on the last
parsed node; locate symbols selectedOption.template, $parseSerializedNode,
nodeToRemove, parent.splice and lastNode.selectEnd to implement the fallback
insertion.

src/components/chat-view/chat-input/plugins/template/TemplatePlugin.tsx-179-184 (1)

179-184: ⚠️ Potential issue | 🟡 Minor

Appending a TextNode directly to $getRoot() is invalid in Lexical.

The RootNode only accepts ElementNode children (e.g., ParagraphNode). TextNode must be wrapped in an ElementNode first. This affects lines 182-183 and similarly lines 197-198.

Wrap the text node in a ParagraphNode:

Proposed fix

+import { $createParagraphNode } from 'lexical'
...
           } else {
             const root = $getRoot()
             const textNode = $createTextNode(skillCommand)
+            const paragraph = $createParagraphNode()
+            paragraph.append(textNode)
+            root.append(paragraph)
-            root.append(textNode)
             textNode.selectEnd()
           }

(Apply the same fix for the command branch at lines 196-199.)

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/chat-input/plugins/template/TemplatePlugin.tsx`
around lines 179 - 184, The code appends a TextNode directly to $getRoot() which
is invalid; instead create a ParagraphNode, append the TextNode into that
ParagraphNode, then append the ParagraphNode to root. Update the branches that
use $createTextNode(skillCommand) and root.append(...) (around the usage of
$getRoot(), textNode, and skillCommand in TemplatePlugin.tsx) to wrap the
created text node in a ParagraphNode (e.g., new ParagraphNode or
ParagraphNode.create()) before appending, and call selectEnd() on the text node
as before.

backend/.env.example-15-16 (1)

15-16: ⚠️ Potential issue | 🟡 Minor

Comment/value mismatch for CLAUDE_MODEL.

The comment states the default is claude-sonnet-4-5-20250514, but the example value is set to claude-opus-4-6. Pick one or clarify intent (e.g., "default in code" vs. "recommended for .env").

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/.env.example` around lines 15 - 16, The comment and example value for
CLAUDE_MODEL are inconsistent; update one so they match. Either change the
comment to state that the example uses "claude-opus-4-6" (or clarify
“recommended .env value”) or change the example value to the documented default
"claude-sonnet-4-5-20250514"; specifically edit the CLAUDE_MODEL entry so the
comment and the variable value align and clearly indicate whether it’s the
default or a recommended override.

backend/src/utils.ts-14-19 (1)

14-19: ⚠️ Potential issue | 🟡 Minor

Invalid LOG_LEVEL value silently disables all logging.

If process.env.LOG_LEVEL is set to a value not in LOG_LEVELS (e.g., 'verbose'), LOG_LEVELS[currentLogLevel] returns undefined, and the >= comparison always yields false, suppressing every log message with no warning.

🛡️ Proposed fix — validate at startup

-const currentLogLevel: LogLevel =
-  (process.env.LOG_LEVEL as LogLevel) || 'info';
+const VALID_LOG_LEVELS = new Set<string>(Object.keys(LOG_LEVELS));
+
+const currentLogLevel: LogLevel = (() => {
+  const envLevel = process.env.LOG_LEVEL;
+  if (envLevel && VALID_LOG_LEVELS.has(envLevel)) {
+    return envLevel as LogLevel;
+  }
+  if (envLevel) {
+    console.warn(`[utils] Invalid LOG_LEVEL "${envLevel}", defaulting to "info"`);
+  }
+  return 'info';
+})();

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/src/utils.ts` around lines 14 - 19, The code silently disables
logging when process.env.LOG_LEVEL is invalid; update the initialization of
currentLogLevel and shouldLog to validate process.env.LOG_LEVEL against
LOG_LEVELS at startup: check if (process.env.LOG_LEVEL) is a key in LOG_LEVELS,
and if not, log a warning (or fallback) and set currentLogLevel to a safe
default like 'info'; ensure shouldLog continues to use
LOG_LEVELS[currentLogLevel] after validation so comparisons never use undefined.
Reference: currentLogLevel, shouldLog, LOG_LEVELS, process.env.LOG_LEVEL.

backend/src/utils.ts-62-86 (1)

62-86: ⚠️ Potential issue | 🟡 Minor

withRetry throws undefined if maxAttempts is 0.

If a caller passes { maxAttempts: 0 }, the loop body never executes, lastError stays undefined, and line 85 throws undefined. Consider guarding with a minimum of 1 attempt or throwing a descriptive error.

🛡️ Proposed fix

-  const { maxAttempts = 3, baseDelayMs = 1000, maxDelayMs = 30000 } = options;
+  const { maxAttempts: rawAttempts = 3, baseDelayMs = 1000, maxDelayMs = 30000 } = options;
+  const maxAttempts = Math.max(1, rawAttempts);

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/src/utils.ts` around lines 62 - 86, The function withRetry can throw
undefined when callers pass maxAttempts: 0 because lastError remains undefined;
fix by enforcing a minimum of 1 attempt or validating inputs: compute const
attempts = Math.max(1, options.maxAttempts ?? 3) (or throw a descriptive error
if options.maxAttempts < 1), use attempts in the for loop instead of
maxAttempts, and ensure the final throw uses a non-undefined Error (e.g., throw
lastError ?? new Error("withRetry failed: no attempts were made")) so withRetry
never throws undefined; update references to maxAttempts in the function
accordingly.

src/utils/chat/promptGenerator.ts-274-324 (1)

274-324: ⚠️ Potential issue | 🟡 Minor

URL mentionables (@url) are silently dropped in the backend provider path.

The non-backend path (lines 412-431) processes MentionableUrl entries and fetches website content, but the backend branch here doesn't handle them at all. If a user mentions a URL while using the backend provider, that context will be silently lost.

Consider either:

1. Including URL mentionables in the backend path (e.g., listing them for the agent to fetch), or
2. Logging a warning so users know URL mentions aren't supported with the backend provider.

#!/bin/bash
# Verify MentionableUrl type usage and whether the backend has any URL handling
rg -n 'MentionableUrl' --type=ts -C2

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/utils/chat/promptGenerator.ts` around lines 274 - 324, The backend branch
in compileUserMessagePrompt (guarded by isBackendProvider()) currently ignores
MentionableUrl entries in message.mentionables, dropping URL context; update
that branch to collect URL mentionables (filter by m.type === 'url' /
MentionableUrl) and either (a) append a URL section to filePrompt (e.g., "##
Referenced URLs\n- <url>") so the agent can use vault_read or fetch them, or (b)
at minimum emit a warning via console.warn/processLogger indicating URL mentions
are not supported for backend providers; ensure you add the new urlPrompt into
the returned promptContent.text alongside filePrompt and blockPrompt and keep
the imageDataUrls handling unchanged.

src/core/backend/tool-result-formatter.ts-41-43 (1)

41-43: ⚠️ Potential issue | 🟡 Minor

Overly broad error detection with result.includes('failed').

Any tool result containing the word "failed" in normal content (e.g., "The test failed to reproduce the bug" from a vault_read) will be flagged as an error. Consider checking for a more specific pattern like result.startsWith('Error:') only, or matching against known error prefixes from your backend.

Proposed fix

 const parsed: ParsedToolResult = {
-  isError: result.startsWith('Error:') || result.includes('failed'),
+  isError: result.startsWith('Error:'),
 };

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/core/backend/tool-result-formatter.ts` around lines 41 - 43, The current
error detection in tool-result-formatter.ts flags any result containing
'failed', which is too broad; update the logic that sets parsed:
ParsedToolResult (the parsed variable) to use stricter error detection — e.g.,
remove result.includes('failed') and instead only treat strings starting with
known error prefixes (keep result.startsWith('Error:') or match a
whitelist/regex of backend error prefixes like
/^Error:|^Exception:|^\w+Error:/), or implement a helper (e.g., isBackendError)
that checks against known error patterns; update references to parsed and the
error-detection expression accordingly.

src/components/settings/modals/AddEmbeddingModelModal.tsx-41-45 (1)

41-45: ⚠️ Potential issue | 🟡 Minor

Fallback defaultProvider may reference a provider not in user's configured list.

If availableProviders is empty (no embedding-capable providers configured), defaultProvider falls back to DEFAULT_PROVIDERS[0] (OpenAI). The form will initialize with a providerId that doesn't exist in plugin.settings.providers, leading to a confusing initial state. The submit handler does validate provider existence (line 63), so this won't corrupt data, but the user experience could be improved by disabling the form or showing a message when no embedding-capable providers are available.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/settings/modals/AddEmbeddingModelModal.tsx` around lines 41 -
45, The modal currently falls back to DEFAULT_PROVIDERS[0] when
availableProviders is empty, which can initialize the form with a providerId not
present in plugin.settings.providers; change the logic in AddEmbeddingModelModal
so that if availableProviders.length === 0 you do NOT pick DEFAULT_PROVIDERS[0]
but instead set defaultProvider to undefined and render a clear disabled state:
show a short message/toast that no embedding-capable providers are configured,
disable the form fields and submit button (or hide the form), and ensure the
component’s initial providerId state handles undefined safely; keep the existing
submit-time validation in place but prevent the UX from initializing with an
invalid provider.

backend/README.md-77-92 (1)

77-92: ⚠️ Potential issue | 🟡 Minor

Add a language identifier to the fenced code block.

The ASCII diagram code block on line 77 is missing a language identifier, which triggers a markdownlint warning (MD040). Use ```text for plain-text/diagram blocks.

🔧 Proposed fix

-```
+```text
 ┌─────────────────────────────────────┐

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/README.md` around lines 77 - 92, The fenced ASCII diagram block is
missing a language identifier causing MD040; update the fenced code block (the
ASCII diagram starting with the box labeled "WebSocket Server" / "Agent Loop" /
"Vault Tools") to use a plain-text language tag by changing the opening triple
backticks to triple backticks with "text" (i.e., ```text) so the diagram is
treated as plain text and markdownlint stops warning.

backend/Dockerfile-26-26 (1)

26-26: ⚠️ Potential issue | 🟡 Minor

Use npm prune --omit=dev instead of npm prune --production.

The --production flag is deprecated in npm 7+ and triggers deprecation warnings. Node.js 22 ships with npm 10+, where --omit=dev is the recommended approach.

Suggested fix

-RUN npm prune --production
+RUN npm prune --omit=dev

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/Dockerfile` at line 26, Replace the deprecated npm flag in the
Dockerfile RUN step: change the RUN command that currently calls npm prune
--production to use the modern npm flag --omit=dev instead (i.e., update the RUN
npm prune invocation in the Dockerfile to use --omit=dev so it avoids npm 7+
deprecation warnings).

src/components/settings/modals/AddChatModelModal.tsx-36-44 (1)

36-44: ⚠️ Potential issue | 🟡 Minor

Edge case: empty availableProviders leads to a mismatched default.

If all configured providers are backend type, availableProviders will be empty and the fallback DEFAULT_PROVIDERS[0] (openai) will be used for formData. The dropdown (line 99) will render no options, but the form will be initialized with the openai provider ID. This is a minor UX issue since users likely always have at least one non-backend provider, but worth noting.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/settings/modals/AddChatModelModal.tsx` around lines 36 - 44,
availableProviders can be empty causing defaultProvider to fall back to
DEFAULT_PROVIDERS[0] while the dropdown has no options; change the
initialization so availableProviders is the single source of truth: compute
defaultProvider = availableProviders[0] ?? null and initialize
formData.providerId to defaultProvider?.id ?? '' (or explicitly to
DEFAULT_PROVIDERS[0].id only if you also add that fallback provider into the
dropdown options), then update the dropdown render logic to either include the
fallback DEFAULT_PROVIDERS[0] when availableProviders is empty or disable the
select/submit when formData.providerId is empty; reference availableProviders,
defaultProvider, formData, setFormData, plugin.settings.providers and
DEFAULT_PROVIDERS in the changes.

src/components/chat-view/ActivityAccordion.tsx-97-98 (1)

97-98: ⚠️ Potential issue | 🟡 Minor

vault_rename label renders undefined when oldPath/newPath are missing.

If activity.oldPath or activity.newPath is undefined, the template literal produces "Moved undefined → undefined". Add a fallback:

Proposed fix

     case 'vault_rename':
-      return `Moved ${activity.oldPath?.split('/').pop()} → ${activity.newPath?.split('/').pop()}`
+      return `Moved ${activity.oldPath?.split('/').pop() ?? 'file'} → ${activity.newPath?.split('/').pop() ?? 'file'}`

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/ActivityAccordion.tsx` around lines 97 - 98, The
'vault_rename' branch in ActivityAccordion.tsx currently builds the label with
activity.oldPath?.split('/').pop() and activity.newPath?.split('/').pop(), which
yields "undefined" if those properties are missing; update the case
'vault_rename' to guard and provide fallbacks by first checking activity.oldPath
and activity.newPath (or using a helper like getBasename) and defaulting to a
safe string such as 'unknown' or '' when undefined so the returned string never
contains "undefined" (refer to the 'vault_rename' case and
activity.oldPath/activity.newPath usages).

src/utils/chat/responseGenerator.ts-436-446 (1)

436-446: ⚠️ Potential issue | 🟡 Minor

Use ?? instead of || for startTime to avoid falsy-zero pitfall.

startTime is a numeric timestamp. Using || means a 0 value would be treated as falsy and fall through to newActivity.startTime. While 0 is unlikely as a real timestamp, ?? (nullish coalescing) is the correct operator for "use existing if defined":

Proposed fix

         const merged: ActivityEvent = {
           ...existing,
           ...newActivity,
-          startTime: existing.startTime || newActivity.startTime,
+          startTime: existing.startTime ?? newActivity.startTime,

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/utils/chat/responseGenerator.ts` around lines 436 - 446, The startTime
assignment in the merged ActivityEvent uses the || operator which treats 0 as
falsy; change the expression in the merged object from "startTime:
existing.startTime || newActivity.startTime" to use nullish coalescing:
"startTime: existing.startTime ?? newActivity.startTime" so existing.startTime
is preserved when it is 0 or other defined falsy values; update only the
startTime line in the merged object (symbols: merged, startTime, existing,
newActivity, ActivityEvent).

src/core/backend/ConflictManager.ts-8-8 (1)

8-8: ⚠️ Potential issue | 🟡 Minor

Unused import: Notice.

Notice is imported but never used in this file.

Proposed fix

-import { App, TFile, Notice } from 'obsidian';
+import { App, TFile } from 'obsidian';

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/core/backend/ConflictManager.ts` at line 8, The import line in
ConflictManager.ts includes an unused symbol Notice; remove Notice from the
import statement (keep App and TFile) to eliminate the unused import. Locate the
import "import { App, TFile, Notice } from 'obsidian';" in ConflictManager.ts
and change it so only the actually used symbols (App, TFile) are imported.

backend/test/automated-test.ts-227-233 (1)

227-233: ⚠️ Potential issue | 🟡 Minor

Missing connection timeout — test can hang indefinitely if the server is unreachable.

The initial WebSocket connection has no timeout. If the server isn't running, the test process will never exit (the reject handler only fires on explicit WebSocket errors, not on indefinite hangs in environments where the OS doesn't time out quickly).

Proposed fix

   await new Promise<void>((resolve, reject) => {
+    const connectTimeout = setTimeout(() => {
+      ws.close();
+      reject(new Error('Connection timed out'));
+    }, 10000);
     ws.on('open', () => {
+      clearTimeout(connectTimeout);
       log('Connected to server');
       resolve();
     });
-    ws.on('error', reject);
+    ws.on('error', (err) => {
+      clearTimeout(connectTimeout);
+      reject(err);
+    });
   });

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/test/automated-test.ts` around lines 227 - 233, The connection
Promise that waits for ws 'open' currently has no timeout and can hang; update
the Promise in automated-test.ts that wraps ws.on('open')/ws.on('error') to
include a configurable timeout (e.g., 5s) that rejects if neither 'open' nor
'error' fires, attach a timer via setTimeout and clear it on 'open' or 'error',
and ensure the reject path cleans up listeners (and optionally closes ws) so the
test fails fast instead of hanging.

styles.css-2088-2098 (1)

2088-2098: ⚠️ Potential issue | 🟡 Minor

Deprecated word-break: break-word — flagged by Stylelint at lines 2095, 2241, 2253.

The break-word value for word-break is deprecated. The same behavior is achieved with overflow-wrap: break-word. This applies to three locations in the new CSS:

• Line 2095 (.smtcmp-activity-item-raw pre)
• Line 2241 (.smtcmp-diff-addition pre)
• Line 2253 (.smtcmp-diff-deletion pre)

Proposed fix (example for line 2095, apply similarly to lines 2241 and 2253)

   pre {
     margin: 0;
     white-space: pre-wrap;
-    word-break: break-word;
+    overflow-wrap: break-word;
     font-size: var(--font-smallest);
   }

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@styles.css` around lines 2088 - 2098, Replace the deprecated "word-break:
break-word" with "overflow-wrap: break-word" in the three selector blocks to
restore the same behavior; specifically update the rules inside
.smtcmp-activity-item-raw pre, .smtcmp-diff-addition pre, and
.smtcmp-diff-deletion pre to use overflow-wrap: break-word (and remove the
deprecated word-break declaration).

backend/test/test-client.ts-287-343 (1)

287-343: ⚠️ Potential issue | 🟡 Minor

Listener leak: rl.on('close', …) is registered on every line input.

Each time rl.on('line', …) fires, a new rl.on('close', …) listener is appended (line 340). Over a session this accumulates unbounded listeners. Move it outside the 'line' handler or register it once.

Proposed fix

     rl.on('line', (line) => {
       const input = line.trim();
       // ... prompt handling ...
       ws.send(JSON.stringify(message));
-
-      // Don't prompt until response is complete
-      rl.on('close', () => {
-        // Cleanup
-      });
     });
+
+    rl.on('close', () => {
+      // Cleanup
+    });

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/test/test-client.ts` around lines 287 - 343, The 'close' listener is
being added inside the rl.on('line', ...) handler causing a listener leak; move
the rl.on('close', ...) registration out of the line handler and register it
once during setup (near where rl.on('line', ...) is first attached) so it is not
re-registered per input, ensuring any cleanup logic that references
currentRequestId or ws is executed from that single close handler.

backend/test/automated-test.ts-149-151 (1)

149-151: ⚠️ Potential issue | 🟡 Minor

Unguarded JSON.parse in message handler can crash the test on malformed data.

If the server sends non-JSON data (e.g., a binary WebSocket frame or a malformed message), the test will throw an unhandled exception and exit without a clear diagnostic. Wrap in try/catch and log the error.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/test/automated-test.ts` around lines 149 - 151, The messageHandler
currently calls JSON.parse on WebSocket.RawData without protection; wrap the
JSON.parse(data.toString()) call inside a try/catch in the messageHandler
function to catch malformed or non-JSON frames, log the parsing error (including
the raw data or error.message) via the test logger, and return/ignore the
message on parse failure so the test doesn't throw an unhandled exception.

src/components/chat-view/AssistantToolMessageGroupItem.tsx-128-160 (1)

128-160: ⚠️ Potential issue | 🟡 Minor

Parsed activities use Date.now() for timestamps.

Activities synthesized from content parsing (line 140-141) get startTime: Date.now() and endTime: Date.now(), which don't reflect actual execution time. This means the live timer in ActivityItem would show "0s" for these. Not a bug since these are static/historical activities, but a 0 duration display could be confusing.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/AssistantToolMessageGroupItem.tsx` around lines 128
- 160, The parsed ActivityEvent objects currently set startTime and endTime both
to Date.now(), producing a zero duration; change the timestamp assignment in the
tool-parsing loop that constructs ActivityEvent (the block creating activity
with id `parsed-${type}-${match.index}`) to produce a small non-zero duration
(e.g., set endTime = Date.now() and startTime = endTime - a short delta like
1000–5000ms) so ActivityItem’s live timer shows a brief realistic duration for
synthesized/historical activities.

backend/src/agent.ts-216-219 (1)

216-219: ⚠️ Potential issue | 🟡 Minor

Abort signal may already be aborted when listener is added.

If the external signal is already in the aborted state before addEventListener is called, the callback won't fire and abortController will never abort. Check signal.aborted upfront.

Proposed fix

   if (signal) {
+    if (signal.aborted) {
+      abortController.abort();
+    }
     signal.addEventListener('abort', () => abortController.abort());
   }

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/src/agent.ts` around lines 216 - 219, The abort handling may miss
already-aborted external signals: after creating abortController (const
abortController = new AbortController()) check if the incoming signal variable
is present and signal.aborted is true and call abortController.abort()
immediately, then still add the signal.addEventListener('abort', () =>
abortController.abort()) for future aborts; ensure you handle both the immediate
aborted state and the listener registration so abortController always reflects
the external signal state.

src/main.ts-50-72 (1)

50-72: ⚠️ Potential issue | 🟡 Minor

Potential null dereference of vaultRpcHandler after plugin unload.

If an RPC request arrives after onunload() runs (e.g., a message in-flight during shutdown), this.vaultRpcHandler will be null and the ! assertion on line 57 will throw. Guard the access or remove the listener on unload.

Proposed fix

     webSocketClient.on('rpc_request', async (msg: unknown) => {
       const rpcMsg = msg as RpcRequestMessage
 
       try {
+        if (!this.vaultRpcHandler) {
+          console.warn('[Claudsidian] RPC request received but handler is null (plugin unloaded?)')
+          webSocketClient.sendRpcResponse(rpcMsg.id, undefined, {
+            code: 'RPC_ERROR',
+            message: 'Plugin is unloading',
+          })
+          return
+        }
+
         // Look up the activity ID tracked by BackendProvider's onToolStart.
         // This links the edit snapshot to the correct ActivityEvent for Undo.
         const activityId = webSocketClient.consumeActivityId(rpcMsg.method, rpcMsg.params) || rpcMsg.id
-        const result = await this.vaultRpcHandler!.handleRpc(
+        const result = await this.vaultRpcHandler.handleRpc(
           rpcMsg.method,
           rpcMsg.params,
           activityId,
         )

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/main.ts` around lines 50 - 72, The RPC handler can access
this.vaultRpcHandler after the plugin has been unloaded causing a null
dereference; update the webSocketClient.on('rpc_request', ...) handler to first
check that this.vaultRpcHandler is present (and return/send an RPC error if not)
before calling this.vaultRpcHandler.handleRpc and using
consumeActivityId/sendRpcResponse, and also ensure the listener is removed in
your onunload cleanup (remove the 'rpc_request' listener or call
webSocketClient.off/unsubscribe there) so no in-flight messages hit a null
vaultRpcHandler.

src/components/chat-view/ActivityItem.tsx-40-65 (1)

40-65: ⚠️ Potential issue | 🟡 Minor

FileLink should verify the file is a TFile before calling openFile.

getAbstractFileByPath can return a TFolder. Casting to any and calling openFile on a folder will fail silently or throw. Also, the if (app) guard is unnecessary since useApp() already throws if the context is missing.

Proposed fix

+import { TFile } from 'obsidian'
+
 function FileLink({ filePath, displayName }: { filePath: string; displayName?: string }) {
   const app = useApp()
 
   const handleClick = useCallback((e: React.MouseEvent) => {
     e.stopPropagation()
-    if (app) {
-      // Open the file in Obsidian
-      const file = app.vault.getAbstractFileByPath(filePath)
-      if (file) {
-        app.workspace.getLeaf().openFile(file as any)
-      }
+    const file = app.vault.getAbstractFileByPath(filePath)
+    if (file instanceof TFile) {
+      app.workspace.getLeaf(false).openFile(file)
     }
   }, [app, filePath])

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/ActivityItem.tsx` around lines 40 - 65, Remove the
unnecessary app null check (useApp throws if missing) and in
FileLink::handleClick use getAbstractFileByPath to fetch the file and verify its
type is a TFile before calling openFile; specifically, replace the blind cast
(file as any) with a runtime type check (instanceof TFile or check file.type ===
'file') and only call app.workspace.getLeaf().openFile(file) when the value is a
TFile, otherwise do nothing or log a warning.

backend/src/server.ts-177-197 (1)

177-197: ⚠️ Potential issue | 🟡 Minor

Error handling sends both error and complete to the client.

When handlePrompt catches an error (line 177), it sends an error message. Then the finally block (line 189) sends a complete message if completeSent is false. The client receives both an error and a complete for the same request. Ensure the client handles this gracefully, or set completeSent = true after sending the error.

Proposed fix

     } catch (err) {
       logger.error(`Error processing prompt ${msg.id}:`, err);
       this.send({
         type: 'error',
         requestId: msg.id,
         code: 'AGENT_ERROR',
         message: err instanceof Error ? err.message : 'Unknown error',
       });
+      completeSent = true; // Don't send redundant complete after error
     } finally {

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/src/server.ts` around lines 177 - 197, The catch block in the request
handler currently sends an 'error' message but leaves completeSent false so the
finally block may also emit a 'complete'; update the catch branch (the block
that logs and calls this.send with type: 'error'—the same scope where
logger.error and this.send are invoked) to set completeSent = true immediately
after sending the error (or before) so the finally guard (which sends 'complete'
when completeSent is false) will not send a duplicate 'complete' for the same
requestId; keep the existing this.activeRequests.delete(msg.id) behavior in
finally unchanged.

src/components/chat-view/ActivityItem.tsx-76-85 (1)

76-85: ⚠️ Potential issue | 🟡 Minor

Timer shows 0s briefly for completed activities on mount.

elapsed is initialized to 0, and the else if branch that computes the final elapsed only runs after the first render in the effect. For non-running activities with an endTime, consider initializing elapsed to activity.endTime - activity.startTime to avoid the flash.

Proposed fix

   const [isOpen, setIsOpen] = useState(false)
-  const [elapsed, setElapsed] = useState(0)
+  const [elapsed, setElapsed] = useState(() =>
+    activity.endTime
+      ? activity.endTime - activity.startTime
+      : activity.status === 'running'
+        ? Date.now() - activity.startTime
+        : 0,
+  )

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/ActivityItem.tsx` around lines 76 - 85, The timer
flash happens because elapsed is initialized to 0; update the ActivityItem
component to initialize elapsed based on activity: when activity.status ===
'running' use Date.now() - activity.startTime, otherwise if activity.endTime
exists use activity.endTime - activity.startTime, else 0. Implement this by
changing the useState initialization for elapsed to compute the initial value
(e.g., via the lazy initializer) so the correct elapsed is present on first
render; keep the existing useEffect (which still updates running activities)
unchanged.

src/core/backend/BackendProvider.ts-442-530 (1)

442-530: ⚠️ Potential issue | 🟡 Minor

Error path yields an error chunk and then throws an exception.

When onError fires, it enqueues a chunk with finish_reason: 'stop' and sets isComplete = true. After the generator loop exits, Lines 522–530 throw an Error or LLMRateLimitExceededException. The consumer thus receives the error both as a streamed chunk (with error info) and as a thrown exception. Depending on how callers handle the stream, this could result in double error handling or unexpected behavior.

Consider either removing the error chunk or not throwing after the loop — pick one signaling mechanism.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/core/backend/BackendProvider.ts` around lines 442 - 530, The generator
currently both enqueues an error chunk in onError (via enqueueChunk) and later
throws based on errorState.error, causing duplicate error signaling; fix by
introducing a boolean flag (e.g., errorStreamed) initialized false, set it to
true inside onError when enqueueChunk is called, and then after the streaming
loop only throw the LLMRateLimitExceededException / Error if errorState.error
exists AND errorStreamed is false—this preserves the streamed-error contract
when onError emitted a chunk and prevents a second thrown error. Ensure
references: onError callback, enqueueChunk, errorState.error, and
LLMRateLimitExceededException are updated accordingly.

src/core/backend/WebSocketClient.ts-89-98 (1)

89-98: ⚠️ Potential issue | 🟡 Minor

Auth token exposed in WebSocket URL query string.

The token is sent as a URL query parameter (?token=...). In browser environments, this is the standard workaround since the WebSocket API doesn't support custom headers, but be aware that tokens in URLs may appear in server access logs, CDN/proxy logs, and potentially Referer headers on subsequent HTTP requests from the same page. Ensure server-side logging redacts the query string.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/core/backend/WebSocketClient.ts` around lines 89 - 98, The code in
WebSocketClient that builds wsUrl with `?token=...` exposes the auth token in
the URL; instead, change the connection flow in the WebSocketClient class (the
constructor/connect method that creates `this.ws = new WebSocket(wsUrl)`) to
open a bare WebSocket URL without the token and send the token as the first
post-connect message (e.g., a JSON auth handshake) or use a secure
subprotocol-based handshake the server supports; update the server to accept and
validate that initial auth message and reject connections that do not
authenticate, and remove any usage of the token in query strings so
logs/CDNs/Referer cannot capture it.

src/core/backend/VaultRpcHandler.ts-240-255 (1)

240-255: ⚠️ Potential issue | 🟡 Minor

ReDoS risk: user-supplied regex is compiled and executed without safeguards.

The pattern parameter is compiled directly into a RegExp and then tested against every line of every matching file. A crafted pattern (e.g., (a+)+b) could cause catastrophic backtracking, freezing the Obsidian UI thread.

Consider adding a timeout or complexity limit. A simple mitigation is to wrap the per-line regex.test() in a timeout, or limit pattern length.

🛡️ Minimal mitigation: limit pattern length

 // Compile regex
 let regex: RegExp;
 try {
+  if (pattern.length > 200) {
+    throw new Error('Regex pattern too long (max 200 characters)');
+  }
   regex = new RegExp(pattern, 'gi');
 } catch (e) {
   throw new Error(`Invalid regex pattern: ${pattern}`);
 }

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/core/backend/VaultRpcHandler.ts` around lines 240 - 255, The vaultGrep
method compiles user-supplied pattern into a RegExp and runs it across every
line (ReDoS risk); mitigate by validating and rejecting dangerous/too-large
patterns before compilation: in vaultGrep check pattern length (e.g. max 100
chars) and reject patterns containing nested catastrophic quantifier constructs
(detect strings like ")+" or ")+", "(?:" combined with "+"/"*"/"{", or repeated
nested quantifiers) and throw a clear error; keep the existing try/catch around
new RegExp(pattern, 'gi') but only after the validation, and document the
validation in the error message so callers know to simplify the pattern
(symbols: vaultGrep, pattern, regex, getMarkdownFiles, GrepResult).

[coderabbitai]

⚠️ Potential issue | 🟠 Major

System prompt contains cookbook-specific instructions.

The BASE_SYSTEM_PROMPT includes a "Cookbook Research Tools" section (lines 42-53) with domain-specific instructions for a cooking-related vault. This is hardcoded into the agent and will appear for all users regardless of their vault content. Consider making this configurable or loading it from the vault (similar to how CLAUDE.md is used for vault-specific instructions).

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/src/agent.ts` around lines 17 - 68, The BASE_SYSTEM_PROMPT constant
embeds cookbook-specific guidance that will apply to every user; extract that
cookbook section out of BASE_SYSTEM_PROMPT and make the system prompt composable
by adding a loader function (e.g., buildSystemPrompt or getBaseSystemPrompt)
that reads optional vault-specific instructions (like CLAUDE.md does) or a
dedicated cookbook file and appends them only when present; update usages that
reference BASE_SYSTEM_PROMPT to call the new builder so cookbook rules are
injected conditionally rather than hardcoded.

[coderabbitai]

⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

🌐 Web query:

Anthropic Claude model names 2025

💡 Result:

Anthropic Claude model names that debuted in 2025 (with their Claude API model IDs):

• Claude Sonnet 3.7 (Feb 2025) — claude-3-7-sonnet-20250219 (alias: claude-3-7-sonnet-latest) [1][2]
• Claude Sonnet 4 (May 2025) — claude-sonnet-4-20250514 (also claude-sonnet-4-0) [1][2]
• Claude Opus 4 (May 2025) — claude-opus-4-20250514 (also claude-opus-4-0) [1][2]
• Claude Opus 4.1 (Aug 2025) — claude-opus-4-1-20250805 [1][2]
• Claude Sonnet 4.5 (Sep 2025) — claude-sonnet-4-5-20250929 [1][2]
• Claude Haiku 4.5 (Oct 2025) — claude-haiku-4-5-20251001 [1][2]
• Claude Opus 4.5 (Nov 2025) — claude-opus-4-5-20251101 [1][3]

Sources: [1] [2] [3]

---

🏁 Script executed:

cat -n backend/src/index.ts | head -50

Repository: glowingjade/obsidian-smart-composer

Length of output: 2033

---

Replace invalid default model name claude-opus-4-6 with a valid Anthropic Claude model identifier.

The default model string claude-opus-4-6 does not match any known Anthropic Claude model. Valid 2025 models include claude-opus-4-20250514, claude-opus-4-1-20250805, or claude-opus-4-5-20251101. Using an invalid model name will cause API failures when the CLAUDE_MODEL environment variable is not set.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/src/index.ts` at line 33, The logged default for CLAUDE_MODEL is
using an invalid model name; update the default used in logger.info (the
expression reading process.env.CLAUDE_MODEL || 'claude-opus-4-6') to a valid
Anthropic Claude identifier such as 'claude-opus-4-20250514' (or another valid
2025 model like 'claude-opus-4-1-20250805'/'claude-opus-4-5-20251101') so that
the app won’t attempt to call the API with a nonexistent model when
process.env.CLAUDE_MODEL is unset.

[coderabbitai]

⚠️ Potential issue | 🟠 Major

Hardcoded fallback 'dev-token' for AUTH_TOKEN.

If AUTH_TOKEN is not set in production, any client can connect with 'dev-token'. Consider logging a warning at startup when the env var is unset, or refusing to start without it in non-development environments.

Proposed safeguard

-const AUTH_TOKEN = process.env.AUTH_TOKEN || 'dev-token';
+const AUTH_TOKEN = process.env.AUTH_TOKEN;
+if (!AUTH_TOKEN) {
+  if (process.env.NODE_ENV === 'production') {
+    throw new Error('AUTH_TOKEN environment variable is required in production');
+  }
+  logger.warn('AUTH_TOKEN not set — using insecure default "dev-token"');
+}
+const effectiveAuthToken = AUTH_TOKEN || 'dev-token';

Then use effectiveAuthToken on line 362.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@backend/src/server.ts` at line 29, Replace the hardcoded fallback by deriving
an effectiveAuthToken: read process.env.AUTH_TOKEN into AUTH_TOKEN, compute
effectiveAuthToken = AUTH_TOKEN || (process.env.NODE_ENV === 'development' ?
'dev-token' : undefined), and if effectiveAuthToken is undefined and NODE_ENV
!== 'development' log an error and exit (or throw) at startup; if AUTH_TOKEN was
unset but NODE_ENV === 'development' log a clear startup warning. Then update
places that use AUTH_TOKEN (e.g., the later usage referenced as
effectiveAuthToken) to use the new effectiveAuthToken variable so production
never accepts the default dev token.

[coderabbitai]

⚠️ Potential issue | 🔴 Critical

Changing the plugin id is a breaking change for existing users.

Obsidian uses the manifest id to locate the plugin's data folder (<vault>/.obsidian/plugins/<id>/), settings, and for community plugin registry lookups. Renaming from "smart-composer" to "claudsidian" means:

1. Existing installations won't receive this as an update — Obsidian will treat it as an entirely different plugin.
2. User settings, data, and configuration stored under the old smart-composer folder will be orphaned.
3. If this is a fork intended for separate distribution, this is fine — but it should not be merged into the upstream glowingjade/obsidian-smart-composer repo without a migration strategy.

Please confirm whether this is intentional (standalone fork) or if it should retain the original id for backward compatibility.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@manifest.json` around lines 2 - 3, The manifest "id" was changed from
"smart-composer" to "claudsidian", which breaks upgrades and orphan settings;
either revert the manifest "id" back to "smart-composer" to preserve existing
users' plugin folder and settings, or if this is an intentional standalone fork,
keep "claudsidian" but add a clear migration path: implement a one-time
migration routine that looks for settings/data under the old "smart-composer"
folder and moves/merges them into the new "claudsidian" location (or document
the fork decision in the README and release notes) — update the manifest "id"
key and add the migration code or documentation accordingly.

[coderabbitai]

⚠️ Potential issue | 🟠 Major

editActivities is computed but never rendered.

The useMemo at line 185 splits activities into explorationActivities and editActivities, but only the exploration section is rendered (lines 212–239). Edit activities (vault_write, vault_edit, vault_rename, vault_delete) will silently disappear from the accordion. This is either a bug or an incomplete feature.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/chat-view/ActivityAccordion.tsx` around lines 185 - 241, The
code splits activities into explorationActivities and editActivities in the
useMemo but never renders editActivities; update the component to render a
separate "Edits" section (similar to the exploration section) that maps
editActivities to ActivityItem using the same props (key={activity.id},
activity, label={getActivityLabel(activity)},
icon={getActivityIcon(activity.type)}), include a header and toggle (you can
reuse isOpen/setIsOpen or introduce a new state like isEditsOpen for independent
collapse), and show a suitable title (e.g., "Edits" or count/summary) while
preserving existing behavior for isStreaming and summary for the exploration
section.

[coderabbitai]

⚠️ Potential issue | 🟠 Major

Replacing the original author's funding link with a fork's GitHub URL.

This change removes the original author's (Heesu Suh / glowingjade) "Buy Me a Coffee" donation link and replaces it with a GitHub link to ki-cooley/claudsidian. If this PR is merged into the upstream repository, it would remove the original maintainer's funding mechanism.

If this is a standalone fork, this is fine. If targeting upstream, the original funding link should be preserved or the change discussed with the original author.

Additionally, the URL has the same fork-vs-upstream concern flagged in ErrorModal.tsx.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/settings/SettingsTabRoot.tsx` around lines 24 - 35, This
change replaces the original maintainer's donation link with a fork's GitHub URL
in the SettingsTabRoot component (see the ObsidianButton rendering), which would
remove the upstream author's funding link if merged; either restore the original
"Buy Me a Coffee" donation link (crediting Heesu Suh / glowingjade) in
SettingsTabRoot's ObsidianButton, or make the funding link
configurable/conditional for forks (e.g., via a build-time or runtime config)
and apply the same fork-vs-upstream treatment to ErrorModal.tsx so both
locations behave consistently; if targeting upstream, discuss and get consent
from the original author before replacing their funding link.

[coderabbitai]

⚠️ Potential issue | 🟠 Major

Changing defaults to backend-agent will break the out-of-box experience for users without the backend.

Both DEFAULT_CHAT_MODEL_ID and DEFAULT_APPLY_MODEL_ID now point to backend-agent, which requires a running backend server and configured authToken/backendUrl. New installs and users who haven't set up the backend will get immediate errors when trying to chat or apply.

If this is intentional for the Claudsidian fork, consider at minimum adding a clear onboarding prompt or fallback when the backend is unreachable. If this PR targets the upstream Smart Composer repo, these defaults should remain as the original API-based models.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/constants.ts` around lines 11 - 12, DEFAULT_CHAT_MODEL_ID and
DEFAULT_APPLY_MODEL_ID were changed to 'backend-agent', which breaks new
installs without a configured backend; either revert these constants to the
upstream API-based default model IDs (restore the original API model strings for
DEFAULT_CHAT_MODEL_ID and DEFAULT_APPLY_MODEL_ID) or add a runtime fallback:
keep the constants as-is only when a valid backend is configured (check
authToken and backendUrl) and otherwise select the upstream API model IDs, plus
surface a clear onboarding message when backend is unreachable so users know to
configure authToken/backendUrl before using the backend-agent.

[coderabbitai]

⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

🏁 Script executed:

# First, let's understand the file structure and find migration-related files
git ls-files | grep -E '(migration|schema|setting)' | head -20

Repository: glowingjade/obsidian-smart-composer

Length of output: 1097

---

🏁 Script executed:

# Look at the relevant lines in src/constants.ts
cat -n src/constants.ts | sed -n '170,250p'

Repository: glowingjade/obsidian-smart-composer

Length of output: 2604

---

🏁 Script executed:

# Search for migration files with more specific patterns
fd -t f -e ts | xargs grep -l "schema.*version\|migration" | head -15

Repository: glowingjade/obsidian-smart-composer

Length of output: 629

---

🏁 Script executed:

# Find all migration files
find src/settings/schema/migrations -type f -name "*.ts" | sort

Repository: glowingjade/obsidian-smart-composer

Length of output: 1264

---

🏁 Script executed:

# Check schema version definition
rg -n "version|schema" src/settings/schema -t ts -A 2 | head -50

Repository: glowingjade/obsidian-smart-composer

Length of output: 2998

---

🏁 Script executed:

# Look for backend references in migration files
rg -l "backend" src/settings/schema/migrations

Repository: glowingjade/obsidian-smart-composer

Length of output: 61

---

🏁 Script executed:

# Check the latest migration file content
cat src/settings/schema/migrations/11_to_12.ts

Repository: glowingjade/obsidian-smart-composer

Length of output: 4579

---

🏁 Script executed:

# Check the 12_to_13.ts migration file
cat src/settings/schema/migrations/12_to_13.ts

Repository: glowingjade/obsidian-smart-composer

Length of output: 493

---

🏁 Script executed:

# Find the current SETTINGS_SCHEMA_VERSION
rg -n "SETTINGS_SCHEMA_VERSION" src/settings/schema --type ts -B 2 -A 2

Repository: glowingjade/obsidian-smart-composer

Length of output: 3172

---

🏁 Script executed:

# Check if there are any migrations beyond 12_to_13
find src/settings/schema/migrations -type f -name "*_to_*.ts" | sort

Repository: glowingjade/obsidian-smart-composer

Length of output: 1175

---

🏁 Script executed:

# Search for backend references in all migration files
rg -n "backend" src/settings/schema/migrations --type ts

Repository: glowingjade/obsidian-smart-composer

Length of output: 61

---

🏁 Script executed:

# Check the migrations index to see which migrations are exported/applied
cat -n src/settings/schema/migrations/index.ts

Repository: glowingjade/obsidian-smart-composer

Length of output: 2416

---

Settings migration required for new backend provider and model.

Per the comments on lines 177–179 and 237–238, adding new default providers/models requires a settings migration. The new backend provider (lines 227–232) and backend-agent model (lines 241–246) have been added to constants.ts but no migration exists to include them. The current schema version is 13, and the 12_to_13 migration only adds externalResourceDir. Create a new migration (13_to_14 or equivalent) to add these entries, otherwise existing users won't receive them on upgrade.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/constants.ts` around lines 227 - 232, Existing users need a settings
migration to add the new default "backend" provider and "backend-agent" model;
create a new migration function (bump schema from 13 to 14) that updates stored
settings to include the provider entry matching the constants.ts block (type
'backend', id = PROVIDER_TYPES_INFO.backend.defaultProviderId, backendUrl '',
authToken '') and the new model entry for 'backend-agent' so existing installs
receive them. Locate the app's migration registry (where 12_to_13 is
implemented) and add a 13_to_14 migration that safely merges these defaults into
providers/models arrays only if they are missing, and increment the schema
version to 14.

[coderabbitai]

⚠️ Potential issue | 🟠 Major

Missing cleanup for vault event listener — resource leak on plugin reload.

The vault.on('modify', …) listener registered in the constructor is never unregistered. If the ConflictManager is recreated (e.g., plugin disable/enable cycle), stale listeners accumulate. Add a destroy() or cleanup() method and call it from the plugin's onunload.

Proposed fix

 export class ConflictManager {
   private versions = new Map<string, FileVersion>();
+  private modifyHandler: (file: any) => void;

   constructor(private app: App) {
-    this.app.vault.on('modify', (file) => {
+    this.modifyHandler = (file) => {
       if (file instanceof TFile && this.versions.has(file.path)) {
         this.handleExternalModify(file);
       }
-    });
+    };
+    this.app.vault.on('modify', this.modifyHandler);
+  }
+
+  destroy(): void {
+    this.app.vault.off('modify', this.modifyHandler);
+    this.versions.clear();
   }

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	export class ConflictManager {
	private versions = new Map<string, FileVersion>();
	constructor(private app: App) {
	// Watch for external file modifications
	this.app.vault.on('modify', (file) => {
	if (file instanceof TFile && this.versions.has(file.path)) {
	this.handleExternalModify(file);
	}
	});
	}
	export class ConflictManager {
	private versions = new Map<string, FileVersion>();
	private modifyHandler: (file: any) => void;
	constructor(private app: App) {
	// Watch for external file modifications
	this.modifyHandler = (file) => {
	if (file instanceof TFile && this.versions.has(file.path)) {
	this.handleExternalModify(file);
	}
	};
	this.app.vault.on('modify', this.modifyHandler);
	}
	destroy(): void {
	this.app.vault.off('modify', this.modifyHandler);
	this.versions.clear();
	}

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/core/backend/ConflictManager.ts` around lines 25 - 35, The constructor of
ConflictManager registers a vault 'modify' listener but never removes it,
causing leaked listeners on plugin reloads; add a public cleanup/destroy method
on ConflictManager that removes the listener registered in the constructor (undo
the this.app.vault.on('modify', ...) with the corresponding
this.app.vault.off('modify', ...) using the same callback reference) and ensure
the plugin calls that cleanup from its onunload to prevent stale listeners;
reference the ConflictManager class, its constructor, the handleExternalModify
callback, and the new destroy/cleanup method when implementing.

[coderabbitai]

⚠️ Potential issue | 🟠 Major

Weak hash function risks silent data loss through false-negative conflict detection.

This 32-bit djb2 hash has a meaningful collision probability, especially as content size grows. A hash collision causes checkConflict to report "no conflict" when the file has actually changed, leading to a silent overwrite. For a safety-critical conflict detector, consider using a cryptographic hash (SHA-256) or at minimum a longer non-cryptographic hash.

Also, hash & hash on line 118 is a no-op — the intent is likely hash |= 0 or simply relying on the bitwise shift already truncating to 32 bits.

Proposed fix using Web Crypto (available in Obsidian/Electron)

-  private hashContent(content: string): string {
-    let hash = 0;
-    for (let i = 0; i < content.length; i++) {
-      const char = content.charCodeAt(i);
-      hash = (hash << 5) - hash + char;
-      hash = hash & hash;
-    }
-    return hash.toString(36);
-  }
+  private hashContent(content: string): string {
+    // Simple but longer hash to reduce collision risk
+    // For a synchronous approach, use two independent 32-bit hashes
+    let h1 = 0x811c9dc5; // FNV offset basis
+    let h2 = 0;
+    for (let i = 0; i < content.length; i++) {
+      const char = content.charCodeAt(i);
+      h1 = Math.imul(h1 ^ char, 0x01000193); // FNV-1a
+      h2 = (h2 << 5) - h2 + char;
+      h2 = h2 | 0;
+    }
+    return (h1 >>> 0).toString(36) + '-' + (h2 >>> 0).toString(36);
+  }

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	private hashContent(content: string): string {
	let hash = 0;
	for (let i = 0; i < content.length; i++) {
	const char = content.charCodeAt(i);
	hash = (hash << 5) - hash + char;
	hash = hash & hash; // Convert to 32-bit integer
	}
	return hash.toString(36);
	}
	private hashContent(content: string): string {
	// Simple but longer hash to reduce collision risk
	// For a synchronous approach, use two independent 32-bit hashes
	let h1 = 0x811c9dc5; // FNV offset basis
	let h2 = 0;
	for (let i = 0; i < content.length; i++) {
	const char = content.charCodeAt(i);
	h1 = Math.imul(h1 ^ char, 0x01000193); // FNV-1a
	h2 = (h2 << 5) - h2 + char;
	h2 = h2 | 0;
	}
	return (h1 >>> 0).toString(36) + '-' + (h2 >>> 0).toString(36);
	}

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/core/backend/ConflictManager.ts` around lines 113 - 121, The current
hashContent function uses a weak 32-bit DJB2-like hash and contains a no-op mask
(hash & hash); replace it with a robust SHA-256 implementation and update
callers accordingly (e.g., checkConflict) so collisions are negligible:
implement hashContent to compute a SHA-256 digest (using Web Crypto's
crypto.subtle.digest or Node's crypto.createHash('sha256')), encode the result
as hex/base64 string, remove the erroneous "hash & hash" logic, and if using
crypto.subtle make hashContent async and propagate async/await to any callers
such as checkConflict to await the new hash result. Ensure all places that
compare hashContent outputs are updated to handle the new string format and
async behavior.