api-verification skillA
api-verification is agent-read markdown (skill) from jakeselby/agent-harness: 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..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Research and API verification The operative lines live in the resident rule `primitives/rules/research-and-verification.md`. This skill carries the reasoning, the arithmetic behind the search budget, and what to do after a fan-out. ## 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. - **Spot-check one returned record** against the field you filtered on before trusting the set. …
Read the whole file at its exact version.
How to install
mdr add jakeselby/agent-harness/api-verification@git:20260923.097bdb0mdr add jakeselby/agent-harness/api-verification@sha256:7342a545c61a991fPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_uxguexlv3zu3uec3)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260923.097bdb0 latest | 2026-09-23 | 097bdb0 | 1,951 B | A | view · diff |
| git:20260919.04aa2b5 | 2026-09-19 | 04aa2b5 | 1,970 B | A | view · diff |
| git:20260919.6cf18f7 | 2026-09-19 | 6cf18f7 | 1,966 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 (1951 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 · 17 stars · license MIT · pushed 2026-09-25 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uxguexlv3zu3uec3 GET https://markdownregistry.com/api/v1/resolve?ref=jakeselby/agent-harness/api-verification GET https://markdownregistry.com/api/v1/blob/7342a545c61a991f3d19aa3af008b8b1620f84fd2de33154af8226f7918771a0
Your agent 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.
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