verify-before-claiming SKILL.md skillA
verify-before-claiming from yoavshmariahu/thinker is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add yoavshmariahu/thinker/verify-before-claiming@git:20261104.ecb0077Pins git:20261104.ecb0077 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- yoavshmariahu/thinker
- Path
.agents/skills/verify-before-claiming/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261104.ecb0077, committed Nov 4, 2026
- Size
- 5,635 bytes
- Repository stars
- 16
- License
- MIT
Check a claim about thinker's own cost or behaviour against ground truth before asserting it: the API's reported usage, the bytes of a dumped request, a control arm's values. Use when analysing the proxy, the clearing, cache writes, token cost, or when proposing an improvement to any of them. Complements collaborative-research, which covers the research lifecycle; this covers what counts as evidence.
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
# Verify before claiming Thinker measures itself, so almost every number it reports is its own estimate of something the API also reports exactly. Reasoning from the estimate is the single most reliable way to be confidently wrong here. On 2026-11-04 it produced three wrong calls in one session, each caught later by a check that cost nothing. **The rule: a claim about cost or behaviour is not a finding until it has been checked against the API's own numbers, the actual bytes sent, or a control arm. Thinker's estimate of any of those is a hypothesis.** ## The ladder: cheapest first, and the cheap ones are the good ones Work down it only as far as the question requires. Nearly everything is answerable in the first two rungs, and the paid rungs were the least informative per dollar all day. | rung | cost | answers | |---|---|---| | **1. Read the log you already have** | free | what the API reported: `write`, `read`, `input`, `cleared`, per call. Compare against what the policy predicted. | …
Read the whole file at its exact version.
How to install
mdr add yoavshmariahu/thinker/verify-before-claiming@sha256:0fa9b105bae8e899The line at the top of this page pins the label git:20261104.ecb0077, 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_ojklbii5a4zkojtq)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Nov 4, 2026.
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 (5635 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
yoavshmariahu/thinker · 16 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ojklbii5a4zkojtq GET https://markdownregistry.com/api/v1/resolve?ref=yoavshmariahu/thinker/verify-before-claiming GET https://markdownregistry.com/api/v1/blob/0fa9b105bae8e899af26562b9609967680044ca7924b544a7d4564027513e44e
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 yoavshmariahu/thinker
Every file in yoavshmariahu/thinker