api-verification SKILL.md skillA
This file is byte-identical to the first copy the registry indexed, one of 4 indexed copies. Same content hash, so the same checks give both the same grade.
api-verification from jakeselby/agent-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jakeselby/agent-harness/api-verification@git:20260929.1af83d7Pins git:20260929.1af83d7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jakeselby/agent-harness
- Path
directory/model-citizen/primitives/skills/api-verification/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260929.1af83d7, committed Sep 29, 2026
- First version recorded
- Sep 28, 2026
- Size
- 1,999 bytes
- Repository stars
- 24
- License
- MIT
Prove a search, filter or API answer is real before relying on it, and budget web search across a fan-out. Use when querying an unfamiliar API, a filter returns suspiciously clean results, a per-item error may have been swallowed, or briefing research agents.
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
# Research and API verification The resident rule `primitives/rules/research-and-verification.md` is provenance for the full harness installation, not a dependency of this skill. The verification procedure and search budget below also apply when this skill is installed standalone. ## Search budget **Web search is capped per session and shared by every subagent in that session.** On Claude Code the cap is 200 calls. An 18-agent fan-out briefed for 35 searches each exhausts it within minutes; later agents run on fetch alone. Budget accordingly: roughly 10 agents at 20 searches, or 6 at 30. For bigger runs, stagger waves across separate sessions, or brief agents to lean on fetching known primary sources. After a fan-out, check each subagent's search count and re-run starved, discovery-heavy dimensions in a fresh session. Fetch-only agents are fine for licence pages and official docs, thin for "what shipped recently" questions. ## Prove an API answer is real - **Unknown query parameters are silently ignored by most APIs.** Prove a filter bites by sending a value that can never match and confirming the result is empty. …
Read the whole file at its exact version.
How to install
mdr add jakeselby/agent-harness/api-verification@sha256:2ef2a805f4f08767The line at the top of this page pins the label git:20260929.1af83d7, 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_yindzynh7m7g344p)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 28, 2026 and Sep 29, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260929.1af83d7 latest | 2026-09-29 | 1af83d7 | 1,999 B | A | view · diff |
| git:20260928.ca93e6d | 2026-09-28 | ca93e6d | 1,951 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 (1999 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
jakeselby/agent-harness · 24 stars · license MIT · pushed 2026-10-15 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yindzynh7m7g344p GET https://markdownregistry.com/api/v1/resolve?ref=jakeselby/agent-harness/api-verification GET https://markdownregistry.com/api/v1/blob/2ef2a805f4f087677015c97b264786ad9dc4440ca53a3c29e0d1ae884dab4093
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.
More from jakeselby/agent-harness
Every file in jakeselby/agent-harness