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

    Verification-Before-Done

    1

    It treats verification as a first-class artifact, not an afterthought.

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    Verification-Before-Done

    Verification-Before-Done

    Example session with this skill installed

    I fixed a bug where our Node/Express app sent password reset emails twice. The job was queued in both the controller and a Mongoose post-save hook, and I removed the hook. Is it actually done?

    • Read your context and instructions
    • Compiled the verification-before-done

    Verification plan for the duplicate password reset email fix. It is not done until the checks below produce evidence.

    Definition of "working"

    • One reset request produces exactly one job in the queue and one email sent
    • Other flows that relied on the post-save hook still behave as before
    • The reset link in the email still works end to end

    Checks (evidence over inference)

    #CheckEvidence to capture
    1Trigger one reset in stagingQueue shows 1 job for that user ID
    2Inspect mail provider log1 message to the test address
    3Search the codebase for other callers of the hook's functionList of call sites, or "none"
    4Save a user through a non-reset path (profile update)No reset job queued
    5Click the reset link, set a new passwordLogin with the new password succeeds
    6Add a test asserting the enqueue is called onceTest fails on the old code, passes on the new

    "The hook is gone so it must be fixed" is inference. Checks 1, 2 and 6 turn it into evidence.

    Evidence trail

    Record per check: date, environment, command or action, observed result, link to log or screenshot. Attach it to the PR.

    Next steps

    • Run checks 1 to 5 in staging and fill in the trail
    • Write the regression test from check 6
    • Mark done only when every row has evidence

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

    What you get

    Generate step-by-step verification checklists for code changesIdentify edge cases and regression risks before deploymentDesign evidence-based testing plans for complex fixesPrevent stale-version and cache-related deployment errors

    About this skill

    'Should work now' is the most expensive sentence in software — it means the change was reasoned about, not observed, and the next person to touch this code will pay for that assumption. This skill builds the verification protocol for your specific change: the exact commands to run, the outputs to observe, the edge cases to test manually, and the signals that confirm the fix didn't introduce a regression. It treats verification as a first-class artifact, not an afterthought. Use it before you close any ticket — give it your change, your environment, and what you've already tested; it returns the complete verification checklist that lets you say 'done' and mean it.

    How to install

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

    ~30 seconds
    1. 1

      Download the ZIP

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    2. 2

      Unzip into your skills folder

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    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.

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    Passed our 8-point scan before listing

    Fresh listing

    Recently published to Agensi

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    Trust & safety

    Security scanned

    Verified clean 3 months ago

    • Passed all security checks, Safe to install

    Listed3 months ago
    Updated11 days ago

    What's inside

    Frequently Asked Questions