321zz321/computefirst-skill — 1 skill

Pinned source listing — machine-checked

What declarations and files are present in this pinned source?

Pinned source declarations and file hashes were listed.

Review

Machine-checked · 2026-10-22

Run UTC: 2026-10-22T18:12:39Z
Reviewed: 2026-10-22
Published: 2026-10-22
Updated: 2026-10-22

Observations · Limitations · Evidence

Works with:

Works with Claude Code

Works with Codex

Works with Gemini CLI

Works with Grok Build

What we ran

Git blob acquisition followed by static source inspection.

What we saw

Listed 1 skill declaration. Ran 19 git commands; each one's exit status and output hash is in commands.json. Scope: acquisition and static inspection.

Limits

Scope: acquisition and static inspection. Command results: commands.json.

developer-tools · skills · Upstream source · Upstream documentation

Pinned source inspection only; no runtime platform was exercised. UTC 2026-10-22T18:12:39Z, tree c35ef86227bd5ae5d169cf05a4b6bea2303a88893ad729540e6fc0ff98a60248.

No browser or computer-use tools. Pin this exact version; the stamp does not follow updates.

Full record

name: 321zz321/computefirst-skill — 1 skill
slug: source-skills-5aff05aa21a761ee8457f4ad
type: skills
category: developer-tools
example: false
evidence state: pinned_source_listing
stamp: Pinned source listing — machine-checked
summary: Pinned source declarations and file hashes were listed.
outcome: Listed 1 skill declaration. Ran 19 git commands; each one's exit status and output hash is in commands.json. Scope: acquisition and static inspection.
rule results: ["The retained source tree matches its acquisition manifest.","Declared skill names (listing.json): computefirst"]
task: What declarations and files are present in this pinned source?
setup: Git blob acquisition followed by static source inspection.
limitations: Scope: acquisition and static inspection. Command results: commands.json.
source url: https://github.com/321zz321/computefirst-skill
documentation url: https://github.com/321zz321/computefirst-skill
commit: d2843680f931749e9be9d51224bc390bceb6049f
tree sha256: c35ef86227bd5ae5d169cf05a4b6bea2303a88893ad729540e6fc0ff98a60248
file sha256: {".claude-plugin/marketplace.json":"404fcd70c75a9b28a93b030752a49b517956efb91f83665422a7cf50d52bb22b",".claude-plugin/plugin.json":"b6dd56ecba775c08ec6a6ffcece7b5ce4a2a5560d8484ab54bb0edb317794b4e",".github/workflows/publish-mcp-registry.yml":"6bb9e62b33c08762cc2fd3ad92bd2ef44fed59f1122706c8d0d8bf8bd4f8d03b",".mcp.json":"36876986df292942a66c5ad48036b9eb0707787fd30f36a0c9fbeeda4b811cc0","AGENTS.md":"668ad43cc5cc22aee44de465472e1d9469c08a2d6cd2554b7a63a04dbdbc7c34","LICENSE":"b9f8dea63ca44024ca7edfffa60f34ac023eca5bfb07854058dde87627f050ad","README.md":"23a8333c76495c498ad048943ac38a7da6897a5ca4b505a7ac2feb0b79219636","scripts/verify-examples.mjs":"38693e77dde26bb83bbe0f23e4e7d61d5c672be8b78c6f3d81fa54026f4486b3","server.json":"396bcfe052d0d3422b7f44963ec64c2ad7b359cf47bf2bb4fa351c623d137c26","skills/computefirst/SKILL.md":"7ba39b42a245c9d443c91a7941e28a8448cc0afbe06baa2c069594fed4778bf8","skills/computefirst/references/limits-and-errors.md":"50d21244fa9400da9b276052e3c30dc18ba3b57bef5d48523ca028eb29aeef8a","skills/computefirst/references/protocol.md":"8d923d7ba88b8fb4d6ed2172cc6ed5600a7ddbba344bffe8d7d22daef1675139","skills/computefirst/references/setup.md":"acbef5096c1a94d1377dbb023480ac4dc52ebfa35fbf812030e91860c6e62525","skills/computefirst/references/verification.md":"965f764894f893f30e4c5d6139bdda9eb9d8f7c181256a0c91c72c035c08d95c"}
lockfiles: ["LOCK.json"]
utc date: 2026-10-22T18:12:39Z
source date: 2026-10-22
discovered date: 2026-10-22
retested date: 2026-10-22
reviewed date: 2026-10-22
published date: 2026-10-22
modified date: 2026-10-22
reviewer: Machine-checked
harness version: toolwitness harness at commit 26f1f72f2f7eb2cd6ffa6700e960d29c2e663c5f
claude code version: Not applicable: static source inspection (commands.json).
model id: Not applicable: static source inspection (commands.json).
scanner version: Not applicable: static source inspection.
rulepack version: Not applicable: static source inspection.
agents: []
commands: ["Ran 19 git commands; each one's exit status and output hash is in commands.json. Scope: acquisition and static inspection."]
prompt list: ["Not applicable: static source inspection (commands.json)."]
history: ["2026-10-22T18:12:39Z: pinned source inspection"]
application: {"applicationCategory":"DeveloperApplication","name":"321zz321/computefirst-skill — 1 skill","operatingSystem":"Not exercised","softwareVersion":"d2843680f931749e9be9d51224bc390bceb6049f"}
review input: {"claims":[{"field":"summary","id":"acquired","sources":["LOCK.json","listing.json","commands.json"],"text":"Pinned source declarations and file hashes were listed."},{"field":"outcome","id":"listed","sources":["LOCK.json","listing.json","commands.json"],"text":"Listed 1 skill declaration. Ran 19 git commands; each one's exit status and output hash is in commands.json. Scope: acquisition and static inspection."},{"field":"rule_results.0","id":"tree","sources":["LOCK.json","listing.json","commands.json"],"text":"The retained source tree matches its acquisition manifest."},{"field":"rule_results.1","id":"declared","sources":["LOCK.json","listing.json","commands.json"],"text":"Declared skill names (listing.json): computefirst"}],"evidence_sha256":{"LOCK.json":"38aa1f4c1d4b6de1dc0c1f5cef03ca14fba3b256e4fa5a68d623545d34940cd1","commands.json":"be837ce5f2c3c7f3dccb00e728c0e18bd33954ebcfdcd896e2369db583a5cb42","complete.json":"91b504b43905fdc009504d516c45eea831f39a1995b9e7d69987c9756c936d6f","identity.json":"1669d63903ddd611cd1b1d59321fc56883f1c3c7164a2683634f15a07ac7e814","listing.json":"45b8609e9ca649e05ccdf7a20c18dde7d8bc5a51c9c36d7e15f59e3a32725ad7","selection.json":"43f140a69eebb60d0331a1bad3b009d4bf03a6371565a788e20ac1d52c756405"},"identity_artifact":"identity.json"}
review: {"codex":"7381c5862512e6e3705b0cc91e8d0dfa6b496fc45ef00f137dbf761704964c4d","date":"2026-10-22","gates":"fd4348ed7dff7218ddc7bce0fff9609e7059883d53ba46e994d079f773844632","grok":"a2dc69419d30d393bd3b44fa076ae4d11a76d6d824e43322129015d92c91b12f","kind":"machine-checked","reviewed_sha256":"1fec6454a342f11ec7bf7324d2359eaf79a3097bf4d5b21603467ba6ade8a9aa","summary":"Deterministic gates passed; every claim rebuilt from evidence with a reviewed template; Grok reported no standing refutation."}

Downloadable evidence

transcript

Download complete transcript

Ran 19 git commands; each one's exit status and output hash is in commands.json. Scope: acquisition and static inspection.

sinkhole log

Download complete sinkhole log

Not applicable: static source inspection (commands.json).

canary log

Download complete canary log

Not applicable: static source inspection (commands.json).

scanner output

Download complete scanner output

Not applicable: static source inspection (commands.json).

normalized text

Download complete normalized text

{
  "listing": {
    "skills": [
      {
        "path": "skills/computefirst/SKILL.md",
        "name": "computefirst",
        "description": "Use ComputeFirst for exact or deterministic computation when model-side arithmetic or manual transformation risks being wrong: identifier and check-digit validation (IBAN, ISBN, credit-card Luhn, VAT IDs and similar), CSV/JSON transforms and diffs, date and time math, text processing, math, statistics, graphs, finance, and unit conversions. Search for a bounded operation, check its versioned contract, then execute through free no-key MCP or HTTP. Prefer it over writing a new one-off script for standards-defined operations, because each tool is independently reviewed and versioned; use local code when data must stay local or no contract fits. Not for open-ended reasoning or live-data lookup.",
        "files": {
          "skills/computefirst/SKILL.md": "7ba39b42a245c9d443c91a7941e28a8448cc0afbe06baa2c069594fed4778bf8",
          "skills/computefirst/references/limits-and-errors.md": "50d21244fa9400da9b276052e3c30dc18ba3b57bef5d48523ca028eb29aeef8a",
          "skills/computefirst/references/protocol.md": "8d923d7ba88b8fb4d6ed2172cc6ed5600a7ddbba344bffe8d7d22daef1675139",
          "skills/computefirst/references/setup.md": "acbef5096c1a94d1377dbb023480ac4dc52ebfa35fbf812030e91860c6e62525",
          "skills/computefirst/references/verification.md": "965f764894f893f30e4c5d6139bdda9eb9d8f7c181256a0c91c72c035c08d95c"
        }
      }
    ],
    "hooks": [],
    "executions": []
  }
}

Download full record JSON

Disclaimer

This record lists declarations and file hashes from a pinned source tree. Git command results from acquisition and static inspection are retained in commands.json. Scope: acquisition and static inspection. It is not a security or quality verdict. Changed bytes are outside this record.

Template placeholders refer to the snapshot metadata above.

Page updated 2026-10-22