MergeShield

    1

    A systematic pre-merge audit gate for Git diffs that flags security risks, migration locks, and test gaps.

    $5

    Secure checkout via Stripe

    30-day refund guarantee

    Converts to your local currency at checkout

    0 installsSecurity scanned

    Works with the AI tools you already use

    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    MergeShield

    Example session with this skill installed

    Review the diff between main and feature/auth-update. Focus on security and migration risks.

    • Read your context and instructions
    • Compiled the mergeshield

    I have audited the diff between main and feature/auth-update. The review identified a critical blocking issue regarding database migration locks and a warning on input validation.

    Quality Gate

    GateStatusEvidence / Action
    ScopePASSChanges are limited to auth-service and migrations/.
    CorrectnessWARNToken expiration logic uses local system time; may cause drift issues.
    SecurityPASSArgon2id implementation follows current best practices.
    TestsWARNNo unit tests found for the new PasswordValidator class.
    MigrationsBLOCKEDadd_column on users table lacks a default value, risking a long table lock.
    CompatibilityPASSBackwards compatible with existing mobile client API versions.
    DocumentationPASSREADME updated with new environment variables.

    Required Before Merge

    • Update migration 20231024_add_role.sql to include a default value or perform the update in batches to avoid locking the users table.
    • Add unit tests for PasswordValidator.ts covering edge cases for special characters.

    Nice to Have

    • Refactor SessionManager.ts to use a centralized NTP-synced time provider instead of new Date().

    Next steps

    1. Apply the migration fix to prevent production downtime.
    2. Generate test stubs for the missing validator coverage.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Identify database migration locks before they hit production.Catch missing unit tests in feature branches.Standardize PR quality across diverse engineering teams.Audit authentication logic changes for security vulnerabilities.

    About this skill

    Manual code reviews are slow, inconsistent, and often miss critical architectural risks. This skill acts as a pre-merge audit gate to catch breaking changes and security vulnerabilities before they reach production.

    What it does

    • Scope Verification identifies unexpected file changes or scope creep within the diff.
    • Risk Assessment flags breaking API changes, concurrency issues, and migration risks.
    • Security Auditing checks for input validation gaps, sensitive data exposure, and authz flaws.
    • Test Gap Analysis verifies if new logic is covered by unit or integration tests.
    • Readiness Reporting generates a structured status table for every pull request.

    How it works

    1. Provide a Git diff, pull request description, or a branch name to be compared.
    2. The skill inspects the code changes, configuration updates, and database migrations.
    3. It evaluates the changes against security, performance, and documentation standards.
    4. You receive a structured "Quality Gate" report with clear PASS/WARN/BLOCKED statuses.

    Frameworks & tools

    Works with any language or framework visible via git diff. Optimized for teams using GitHub, GitLab, or Bitbucket workflows.

    Why this beats prompting it yourself

    Generic prompts often miss subtle infrastructure risks like database migration locks or thread-safety issues. This skill uses a systematic multi-step procedure to ensure no category—from authz to documentation—is skipped during the audit.

    Use cases

    • Audit complex refactors for unintended side effects.
    • Verify security posture on PRs touching authentication logic.
    • Ensure database migrations follow safe deployment patterns.
    • Standardize code review quality across a distributed engineering team.

    Known limitations

    Does not execute code or run live CI pipelines. It cannot verify external API behavior not present in the diff.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
    1. 1

      Download the ZIP

      Free skills download straight away. Paid skills unlock right after purchase.

    2. 2

      Unzip into your skills folder

      Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.

    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

    Skills folder by agent

    Click the path to copy it. Create the folder if it does not exist yet.

    Reviews

    No reviews yet

    Be one of the first to try it. Every listed skill passes our trust checks below.

    Security scanned

    Passed our 8-point scan before listing

    Fresh listing

    Recently published to Agensi

    30-day refund

    Not a fit? Get your money back

    Trust & safety

    Security scanned

    Verified clean 8 days ago

    • Passed all security checks, Safe to install

    Listed8 days ago

    What's inside

    Frequently Asked Questions