Minor fix action

COOKBOOK.md

@@ -65,8 +65,10 @@ jobs:
 - Create an issue with `@junie-agent` in the title or body → Junie analyzes and proposes a solution
 - Submit a PR review mentioning `@junie-agent` → Junie addresses your feedback
 - Comment `@junie-agent resolve conflicts` on a PR with merge conflicts → Junie resolves the conflicts
+- Comment `@junie-agent minor-fix rename variable x to y` in a PR → Junie makes the requested adjustment
 
 **Features enabled:**
+- ✅ Minor Fixes - quickly implement small PR adjustments with `minor-fix`
 - ✅ Single comment mode - updates one comment instead of creating multiple
 - ✅ Works on issues, PRs, comments, and reviews
 - ✅ Only triggers on explicit `@junie-agent` mentions

README.md

@@ -26,6 +26,7 @@ A powerful GitHub Action that integrates [Junie](https://www.jetbrains.com/junie
 - **PR Management**: Reviews code changes and implements requested modifications
 - **Inline Code Reviews**: Create code review comments with GitHub suggestions directly on PR diffs
 - **Conflict Resolution**: Resolve merge conflicts via `@junie-agent` comment or automatic detection
+- **Minor PR Fixes**: Quickly implement small changes in PRs using `@junie-agent minor-fix [instruction]`
 - **CI Failure Analysis**: Investigates failed checks and suggests fixes using MCP integration
 - **Flexible Triggers**: Activate via mentions, assignees, labels, or custom prompts
 - **Smart Branch Management**: Context-aware branch creation and management
@@ -100,6 +101,7 @@ jobs:
 3. Start using Junie:
    - Comment `@junie-agent help me fix this bug` on an issue
    - Mention `@junie-agent review this change` in a PR
+   - Comment `@junie-agent minor-fix rename variable x to y` in a PR to make quick adjustments
 
 ## Jira Integration
 
@@ -140,7 +142,7 @@ Each recipe includes complete workflows, prompts, and configuration examples you
 
 | Input | Description | Default |
 |-------|-------------|---------|
-| `prompt` | Custom instructions for Junie. Special values: `code-review` for structured PR reviews, `fix-ci` for CI failure analysis. See [Cookbook](COOKBOOK.md) for examples. | - |
+| `prompt` | Custom instructions for Junie. Special values: `code-review` for structured PR reviews, `fix-ci` for CI failure analysis, `minor-fix` for quick PR adjustments. See [Cookbook](COOKBOOK.md) for examples. | - |
 | `junie_version` | Junie CLI version to install | `624.1.0` |
 | `model` | Model to use for the primary agent. Available: `gpt-5-2025-08-07`, `gpt-5.2-codex`, `gpt-5.2-2025-12-11`, `claude-sonnet-4-5-20250929`, `claude-opus-4-5-20251101`, `gemini-3-pro-preview`, `gemini-3-flash-preview`, `grok-4-1-fast-reasoning` | - |
 | `junie_work_dir` | Working directory for Junie files | `/tmp/junie-work` |
@@ -207,6 +209,7 @@ For detailed setup instructions, see the [Jira Integration Guide](docs/JIRA_INTE
 | `pr_url` | URL of the pull request created by Junie (if any) |
 | `junie_title` | Title of the task completion from Junie |
 | `junie_summary` | Summary of the changes made by Junie |
+| `custom_junie_args` | Custom Junie arguments extracted from prompt/comment (e.g., `--model=value`) |
 | `github_token` | The GitHub token used by the action |
 
 **Example usage:**

src/constants/github.ts

@@ -32,6 +32,10 @@ export const FIX_CI_ACTION = "fix-ci";
 
 export const FIX_CI_TRIGGER_PHRASE_REGEXP = new RegExp(FIX_CI_ACTION, 'i');
 
+export const MINOR_FIX_ACTION = "minor-fix";
+
+export const MINOR_FIX_TRIGGER_PHRASE_REGEXP = new RegExp(MINOR_FIX_ACTION, 'i');
+
 export const JIRA_EVENT_ACTION = "jira_event";
 
 export const WORKING_BRANCH_PREFIX = "junie/";
@@ -155,6 +159,47 @@ Your task is to analyze CI failures and suggest fixes WITHOUT implementing them.
 `;
 }
 
+export function createMinorFixPrompt(diffPoint: string, userRequest?: string): string {
+    const diffCommand = `gh pr diff ${diffPoint}`
+    const userRequestSection = userRequest 
+        ? `\n### User Request\nThe user has specifically requested: "${userRequest}"\nFocus on addressing this request while following all the guidelines below.\n`
+        : '';
+    const gatherInfoUserRequestNote = userRequest
+        ? `\n   - Focus specifically on understanding what "${userRequest}" means in the context of this PR. Identify the relevant files, functions, or code sections that relate to this request.`
+        : '';
+
+    return `
+Your task is to make a minor fix to this Pull Request based on the user's request.
+${userRequestSection}
+### Steps to follow
+1. Gather Information
+   - Read the Pull Request diff by using \`${diffCommand} | grep "^diff --git"\`. Do not write the diff to file.
+   - Understand the context of the changes and what the PR is trying to accomplish.${gatherInfoUserRequestNote}
+
+2. Implement the Fix
+   - Make the requested changes to the codebase.
+   - Keep changes minimal and focused on the specific request.
+   - Follow the existing code style and conventions in the repository.
+   - Do NOT make unrelated changes or "improvements" beyond what was requested.
+
+3. Validation
+   - Ensure your changes compile/build successfully.
+   - Run relevant tests if applicable.
+   - Verify the fix addresses the user's request.
+
+### Guidelines
+- **Scope**: Only make changes directly related to the user's request. Do not refactor or "improve" unrelated code.
+- **Style**: Match the existing code style, naming conventions, and patterns in the repository.
+- **Safety**: Be conservative with changes. When in doubt, make the smaller change.
+- **Testing**: If you modify logic, ensure existing tests still pass. Add tests only if explicitly requested.
+
+### Output
+Submit a brief summary of the changes you made and why they address the user's request.
+
+IMPORTANT: Do NOT commit or push changes. The system will handle all git operations (staging, committing, and pushing) automatically.
+`;
+}
+
 /**
  * Creates a hidden marker for identifying Junie comments from a specific workflow.
  * This HTML comment is invisible to users but allows finding Junie comments

src/github/context.ts

@@ -21,9 +21,10 @@ import {
     DEFAULT_TRIGGER_PHRASE,
     FIX_CI_ACTION,
     JIRA_EVENT_ACTION, JUNIE_AGENT,
+    MINOR_FIX_ACTION,
     RESOLVE_CONFLICTS_ACTION
 } from "../constants/github";
-import {isReviewOrCommentHasCodeReviewTrigger, isReviewOrCommentHasFixCITrigger} from "./validation/trigger";
+import {isReviewOrCommentHasCodeReviewTrigger, isReviewOrCommentHasFixCITrigger, isReviewOrCommentHasMinorFixTrigger} from "./validation/trigger";
 
 // Jira integration types
 export type JiraComment = {
@@ -499,6 +500,13 @@ export function isFixCodeReviewEvent(context: JunieExecutionContext) {
     return isCodeReviewInPrompt || isCodeReviewInComment;
 }
 
+export function isMinorFixEvent(context: JunieExecutionContext) {
+    const isMinorFixInPrompt = context.inputs.prompt?.includes(MINOR_FIX_ACTION);
+    const isMinorFixInComment = isReviewOrCommentHasMinorFixTrigger(context);
+    console.log(`Minor fix detection: inPrompt=${isMinorFixInPrompt}, inComment=${isMinorFixInComment}`);
+    return isMinorFixInPrompt || isMinorFixInComment;
+}
+
 
 /**
  * Checks if the context is triggered by user interaction (comments, PR/issue events)

src/github/junie/junie-tasks.ts

@@ -1,6 +1,7 @@
 import {
     isIssueCommentEvent,
     isIssuesEvent,
+    isMinorFixEvent,
     isPullRequestEvent,
     isPullRequestReviewCommentEvent,
     isPullRequestReviewEvent,

src/github/junie/new-prompt-formatter.ts

@@ -15,6 +15,7 @@ import {
     isIssueCommentEvent,
     isIssuesEvent,
     isJiraWorkflowDispatchEvent,
+    isMinorFixEvent,
     isPullRequestEvent,
     isPullRequestReviewCommentEvent,
     isPullRequestReviewEvent,
@@ -25,7 +26,7 @@ import {
 } from "../context";
 import {downloadJiraAttachmentsAndRewriteText} from "./attachment-downloader";
 import {sanitizeContent} from "../../utils/sanitizer";
-import {createCodeReviewPrompt, createFixCIFailuresPrompt, GIT_OPERATIONS_NOTE} from "../../constants/github";
+import {createCodeReviewPrompt, createFixCIFailuresPrompt, createMinorFixPrompt, GIT_OPERATIONS_NOTE, MINOR_FIX_ACTION} from "../../constants/github";
 import {extractJunieArgs} from "../../utils/junie-args-parser";
 import {BranchInfo} from "../operations/branch";
 
@@ -112,6 +113,7 @@ ${GIT_OPERATIONS_NOTE}
 
         const isCodeReview = isFixCodeReviewEvent(context)
         const isFixCI = isFixCIEvent(context)
+        const isMinorFix = isMinorFixEvent(context)
 
         if (issue && isCodeReview) {
             const branchName = branchInfo.prBaseBranch || branchInfo.baseBranch;
@@ -123,8 +125,44 @@ ${GIT_OPERATIONS_NOTE}
             const diffPoint = context.isPR && context.entityNumber ? String(context.entityNumber) : branchName;
             console.log(`Using FIX-CI prompt for diffPoint: ${diffPoint}`);
             return createFixCIFailuresPrompt(diffPoint);
+        } else if (isMinorFix) {
+            const branchName = branchInfo.prBaseBranch || branchInfo.baseBranch;
+            const diffPoint = context.isPR && context.entityNumber ? String(context.entityNumber) : branchName;
+            // Extract user request from comment (text after "minor-fix")
+            const userRequest = this.extractMinorFixRequest(context);
+            console.log(`Using MINOR-FIX prompt for diffPoint: ${diffPoint}, userRequest: ${userRequest || '(none)'}`);
+            return createMinorFixPrompt(diffPoint, userRequest);
         }
     }
+
+    /**
+     * Extracts the user's request text from a comment that triggered the minor-fix action.
+     * The request is the text that follows "minor-fix" in the comment.
+     * For example: "minor-fix rename variable foo to bar" -> "rename variable foo to bar"
+     */
+    private extractMinorFixRequest(context: JunieExecutionContext): string | undefined {
+        let commentBody: string | undefined;
+
+        if (isIssueCommentEvent(context) || isPullRequestReviewCommentEvent(context)) {
+            commentBody = context.payload.comment.body;
+        } else if (isPullRequestReviewEvent(context)) {
+            commentBody = context.payload.review.body || undefined;
+        }
+
+        if (!commentBody) {
+            return undefined;
+        }
+
+        // Match "minor-fix" (case insensitive) and capture everything after it
+        const match = commentBody.match(new RegExp(`${MINOR_FIX_ACTION}\\s*(.*)`, 'is'));
+        if (match && match[1]) {
+            const request = match[1].trim();
+            return request.length > 0 ? request : undefined;
+        }
+
+        return undefined;
+    }
+
     private async generateJiraPrompt(context: JunieExecutionContext): Promise<string> {
         const jira = context.payload as JiraIssuePayload;
 

src/github/validation/trigger.ts

@@ -9,7 +9,7 @@ import {
     isPullRequestReviewCommentEvent,
     isPullRequestReviewEvent,
 } from "../context";
-import {CODE_REVIEW_TRIGGER_PHRASE_REGEXP, FIX_CI_TRIGGER_PHRASE_REGEXP, RESOLVE_CONFLICTS_TRIGGER_PHRASE_REGEXP} from "../../constants/github";
+import {CODE_REVIEW_TRIGGER_PHRASE_REGEXP, FIX_CI_TRIGGER_PHRASE_REGEXP, MINOR_FIX_TRIGGER_PHRASE_REGEXP, RESOLVE_CONFLICTS_TRIGGER_PHRASE_REGEXP} from "../../constants/github";
 
 /**
  * Detects if the Junie trigger phrase is present in the workflow context
@@ -99,6 +99,10 @@ export function isReviewOrCommentHasFixCITrigger(context: JunieExecutionContext)
     return isReviewOrCommentHasTrigger(context, FIX_CI_TRIGGER_PHRASE_REGEXP)
 }
 
+export function isReviewOrCommentHasMinorFixTrigger(context: JunieExecutionContext) {
+    return isReviewOrCommentHasTrigger(context, MINOR_FIX_TRIGGER_PHRASE_REGEXP)
+}
+
 export function isReviewOrCommentHasTrigger(context: JunieExecutionContext, regExp: RegExp) {
     if (
         isPullRequestReviewEvent(context) &&