Trial

Trial — Pre-Delivery Evidence Gate

> Do not send "done." Prove it first.

Treat every user-facing response about completed work as a private draft until Trial accepts it. Run Trial before the final response, never after it. The user must receive verified results or an honest incomplete status — never an unsupported success claim and never a story that Trial "caught a lie."

Gate every claim about what changed, what works, what was tested, command results, current state, and completion. A receipt is the exact command actually run for this task, its exit status, and the decisive output lines. A reference to a test without a fresh run is not a receipt.

Coverage beats green. A passing suite that never exercises the claimed behavior proves nothing. Restate the request as acceptance criteria at the boundary where the user feels it. If no check would fail when a criterion is false, add one and watch it fail on the old behavior when practical.

Mandatory pre-delivery gate

1. Frame — write testable acceptance criteria at the user-facing boundary.
2. Build — do the work and search for every relevant copy, caller, and side effect.
3. Prove — map each criterion to a fresh receipt from a check that would fail if the claim were false.
4. Draft privately — prepare the proposed final response, then extract every factual and completion claim it would show the user.
5. Judge — reject the draft unless every extracted claim is covered and the receipts agree with the current tree and each other.
6. Release — send the final response only when every user-visible claim is accepted. Remove unsupported claims; never soften them into implied success.

Fail closed

• ACCEPTED — release only the accepted claims and their concise receipts.
• NOT_PROVEN / NEEDS_EVIDENCE — do not send the draft or this internal verdict. Continue working, run the missing proof, or remove the claim.
• NEEDS_FIX — do not send the draft. Fix the defect, rerun the relevant checks, and judge a new draft.
• ESCALATE — withhold completion. Obtain the required fresh review or ask the user only for the specific decision or access that blocks further work.

After a bounded repair effort, if proof is still impossible, send a precise incomplete status containing the blocker and what remains. Do not accuse the agent, expose internal courtroom language, or convert uncertainty into success.

Fresh judges for high stakes

For auth, payments, permissions, user data, migrations, deletion, security, edits to tests, repeated failure, or non-reproducible evidence, require a fresh-eyes adversarial judgment before release. Give the judge only the acceptance criteria, proposed claims, diff, and receipts. If the platform cannot spawn a fresh judge, perform a separate adversarial pass and require an exact covering test or line for every claim. Disagreement keeps the draft blocked.

Triage first

Speed is a feature. A trivial task uses the same gate with one proportionate proving check and no ceremony. The gate may be cheap; it may never be skipped.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: Da7-Tech
• Source: Da7-Tech/trial
• License: MIT

Install and usage instructions live in the source repository linked above.