verify-public-commit

A checker for an exact commit in a public GitHub repository, where GitHub stores source code and its history. It creates a signed receipt for narrowly defined checks of Node package structure or environment-template safety.

In plain words
What is it for?
Use it to verify an exact 40-character commit against the supported package-structure or environment-safety checks.
Why use it?
It provides independent evidence about a specific, unchangeable version of public code. It does not assess local code, private repositories, runtime behavior, builds, tests, or deployments.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/dyzcode/works-plugins/verify-public-commit
Any agent
npx skills add DYZCODE/works-plugins --skill verify-public-commit
Clone the repo
git clone --depth 1 https://github.com/DYZCODE/works-plugins

Made for: Claude Code, Codex.

Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 513 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00060 $0.00513
Opus 5 $0.00030 $0.00257
Sonnet 5 $0.00012 $0.00103
Haiku 4.5 $0.00006 $0.00051

Measured yesterday against content hash bd10c1b71843, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verify-public-commit scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/works-public/skills/verify-public-commit/SKILL.md · 47 lines

What it actually says

Verify Public Commit

Use works_verify_public_repository only when all of these are known:

  • the repository is public and hosted at https://github.com/<owner>/<repo>;
  • the exact work being judged is represented by a lowercase 40-character commit SHA;
  • a supported WORKS contract matches the claim.

Before calling either WORKS tool, confirm all three eligibility conditions locally from the request. If any condition is absent or the requested claim is runtime, build, test, deployment, or broad production readiness, abstain without calling a WORKS tool. Do not use contract lint to decide basic eligibility.

After eligibility is established, call works_verify_public_repository directly. Use node-package only for package structure, lockfile, and declared automation. Use env-safety only for its exact environment-template contract. Call works_public_contract_lint only when the user explicitly asks to inspect contract metadata without verifying a repository.

Never substitute a branch, tag, pull request number, abbreviated SHA, mutable archive URL, private repository, or local working tree. Never create or push a commit merely to satisfy this skill.

The verification result includes a deterministic report. Return that report verbatim and stop. Do not paraphrase it, add a heading, or manually reconstruct the receipt. The first line labels the exact receipt status:

  • passed: every declared static outcome passed.
  • failed: at least one declared outcome was disproved.
  • blocked: WORKS could not collect complete evidence.
  • error: the verifier failed.

Before returning the report, require trust.pinned_key_identity to be matched and trust.key_id to equal sha256:ccdae125f1c40606597f0111b484689b. A mismatch is a hard failure. This is a pinned key-identity check, not independent signature validation.

The complete signed receipt remains in the tool's structured receipt field. Do not inspect unrelated local files, reread the bundled key, rehash it with a different convention, or call additional tools merely to restate the result.

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 47 lines · 60 tokens per session scan A bd10c1b71843

Subscribe to this mod's changes

verify-public-commit is a skill published in the GitHub repository DYZCODE/works-plugins (0 stars, last pushed 1mo ago), licensed MIT. It adds 60 tokens to every session and 513 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

html-ppt-zhangzara-coral

OpenDesign's community-growth campaign across GitHub, Discord, and X: the loops, the content calendar, and the pipeline math. Built as a decision-grade marketing & GTM deck for growth team, community lead.

nexu-io/open-design · 55 tokens

hr-onboarding

A new-hire onboarding plan as a single page — first week schedule, buddy + manager intro, learning track, equipment checklist, and "you're set when…" outcomes. Use when the brief mentions "onboarding", "new hire", "first week plan", or "入职".

nexu-io/open-design · 62 tokens

html-ppt-hermes-cyber-terminal

OpenDesign + BYOK: choosing and wiring your own model, hands-on — cost, quality, and the routing decision. Built as a decision-grade AI literacy deck for engineers, IT, applied-AI teams.

nexu-io/open-design · 53 tokens

html-ppt-taste-brutalist

16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill brutalist-skill (Tactical Telemetry mode).

nexu-io/open-design · 78 tokens

deepstream-sop

Use this skill when building, deploying, evaluating, debugging, or measuring latency for the DeepStream SOP Inference Microservice — a GPU-accelerated FastAPI service that detects whether operators perform assembly-line steps in order via event boundary detection (GEBD) plus VLM classification. Trigger even if the…

NVIDIA/skills · 219 tokens

cupynumeric-migration-readiness

Pre-migration readiness assessor for porting NumPy to cuPyNumeric. Use BEFORE substantial porting work begins when the user asks whether code will scale on GPU, whether they should migrate to cuPyNumeric, which NumPy patterns transfer cleanly, what must be refactored before porting, or mentions pre-port assessment…

NVIDIA/skills · 173 tokens