Multiple jobs overwrite each other's PR comments

[Halvanhelv]

Problem

When using claude-code-action in multiple parallel jobs within the same workflow (e.g., separate "Code Quality Review" and "Security Review" jobs), the PR comments overwrite each other. Only the last job's comment remains visible.

Expected Behavior

Each job should be able to post its own independent comment that persists, allowing for:

• Separate code quality review comment
• Separate security review comment
• Any other specialized review comments

Current Behavior

When two jobs run in parallel:

jobs:
  code-review:
    steps:
      - uses: anthropics/claude-code-action@v1
        with:
          prompt: "Review code quality..."

  security-review:
    steps:
      - uses: anthropics/claude-code-action@v1
        with:
          prompt: "Review security..."

The second job's comment overwrites the first one, resulting in only one visible comment.

Attempted Workarounds

1. Using use_sticky_comment: false - Comments still collide
2. Using marocchino/sticky-pull-request-comment with different header values - Doesn't work because claude-code-action posts its own comment regardless
3. Combining prompts into single job - Works but loses the benefit of parallel execution and separate concerns

Proposed Solutions

1. Add a comment_id or comment_header parameter to differentiate comments from different jobs
2. Support for custom comment posting (disable built-in commenting, expose result as output only)
3. Built-in support for multiple review types with separate comments

Environment

• Action version: v1
• Workflow trigger: pull_request

Use Case

We want to run specialized reviews in parallel:

• Code quality review
• Security review (SQL injection, auth issues, etc.)

Each review has different prompts and should produce separate, persistent comments.