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Validate — Independent Acceptance Judge

Judges an exact implementation subject against its acceptance criteria and returns a single PASS/FAIL/NOT_PROVEN verdict with evidence.

AutomationAdvanced★ 446⑂ 42AI score 7/10Last updated: Sep 26, 2026

What it does

  • Re-derives subject-manifest.v1 from filesystem content at the start and end of validation; any mismatch means subject mutation and yields NOT_PROVEN.
  • Adjudicates the real diff rather than a declared path list: a proven out-of-scope path is FAIL, incomplete scope evidence is NOT_PROVEN.
  • Treats reported exit codes as claims, not evidence, and re-executes risk-critical or under-evidenced checks.
  • Quarantines subject-mutating commands (regen/sync scripts, formatters, anything with --force) so they never run against an uncommitted subject.
  • Optionally persists a canonical verdict.v2 artifact via store-verdict with atomic write and SHA-256 content addressing, returning path and digest.

Who it's for

  • Teams that need an automated gate over agent-produced code changes.
  • Engineers who want author and validator contexts kept distinct to prevent self-grading.
  • Users of the agentops plan → implement → validate pipeline or similar contract-driven workflows.

Example uses

  1. "Independently validate this implementation" → manifest re-derivation, criterion-level judgment, one semantic result with evidence refs.
  2. Acceptance requires a suite that regenerates files → run it against a disposable copy or committed subject and record a digest-bound receipt as evidence.
  3. A downstream consumer needs machine-readable proof → persist verdict.v2 to .agents/ao/verdicts/sha256/<digest>.json and return the digest.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/boshu2/agentops/HEAD/packs/agentops-executor/agents/validator/skills/validate/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the packs/agentops-executor/agents/validator/skills/validate folder from the GitHub repo boshu2/agentops into my ~/.claude/skills/validate/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/boshu2/agentops.git /tmp/agentops && mkdir -p ~/.claude/skills && cp -r /tmp/agentops/packs/agentops-executor/agents/validator/skills/validate ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/boshu2/agentops.git
  3. Create the skills directory: mkdir -p ~/.claude/skills
  4. Copy the skill: cp -r agentops/packs/agentops-executor/agents/validator/skills/validate ~/.claude/skills/
  5. This skill depends on scripts/validate.py, the store-verdict helper, and the verdict.v2 schema — confirm they came along with the copy; otherwise keep the whole packs/agentops-executor pack in your project.
  6. Check Python 3 is available with python3 --version.
  7. Restart Claude Code and try asking it to "validate" or "independently validate" a change.
View source on GitHub ↗License: Apache-2.0