feature-verify SKILL.md skillA
feature-verify from sd0xdev/sd0x-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sd0xdev/sd0x-harness/feature-verify@git:20260905.7f65168Pins git:20260905.7f65168 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sd0xdev/sd0x-harness
- Path
skills/feature-verify/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260905.7f65168, committed Sep 5, 2026
- First version recorded
- Mar 5, 2026
- Size
- 13,012 bytes
- Repository stars
- 194
- License
- MIT
Feature verification (READ-ONLY, P0-P5). Use when: verifying feature behavior after deployment, validating API responses, diagnosing production issues, post-deploy smoke test. Not for: modifying data (use feature-dev), code review (use codex-review-fast), writing tests (use codex-test-gen), security audit (use codex-security).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Feature Verify — Runtime-First API Verification ## Trigger - Keywords: verify, investigate, diagnose, check if working, post-deploy, smoke test, validate - User wants to confirm deployed feature behavior - User provides environment access (API URL, log system, credentials) ## When NOT to Use | Need | Use Instead | | ---- | ----------- | | Modify data or state | `/feature-dev` | | Code quality review | `/codex-review-fast` | | Generate unit tests | `/codex-test-gen` | | Security audit | `/codex-security` | | Run local tests | `/verify` | | Review test coverage | `/codex-test-review` | ## Core Principle ``` ⚠️ ALL OPERATIONS MUST BE READ-ONLY ⚠️ Claude independent analysis → Codex third-perspective confirmation → Integrated verdict ``` > **Tool safety note**: `allowed-tools` includes `Bash` for curl/log queries. Read-only enforcement is behavioral — all commands MUST be reviewed against `references/safety-rules.md` before execution. Codex independently verifies compliance at P5. ## Degradation Matrix Auto-detect from `references/environments.md` configuration: | Level | Available Resources | P3 API | P4 Observation | Confidence Cap | …
Read the whole file at its exact version.
How to install
mdr add sd0xdev/sd0x-harness/feature-verify@sha256:4395fa06ac70b052The line at the top of this page pins the label git:20260905.7f65168, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_6oxystxohd2jg76a)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 5, 2026 and Sep 5, 2026, about one every 46 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260905.7f65168 latest | 2026-09-05 | 7f65168 | 13,012 B | A | view · diff |
| git:20260319.7b83b52 | 2026-03-19 | 7b83b52 | 12,154 B | A | view · diff |
| git:20260309.0aecf29 | 2026-03-09 | 0aecf29 | 12,110 B | A | view · diff |
| git:20260308.b09fcc8 | 2026-03-08 | b09fcc8 | 11,904 B | A | view · diff |
| git:20260305.e940f80 | 2026-03-05 | e940f80 | 10,683 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13012 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
sd0xdev/sd0x-harness · 194 stars · license MIT · pushed 2026-10-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6oxystxohd2jg76a GET https://markdownregistry.com/api/v1/resolve?ref=sd0xdev/sd0x-harness/feature-verify GET https://markdownregistry.com/api/v1/blob/4395fa06ac70b052221eae1f3d21329bedef24c93e81001a692fcba403aee9b7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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