agentmods.dev

skill-provenance CLAUDE.md

skill-provenance CLAUDE.md is an instructions file for coding agents from snapsynapse/skill-provenance. It costs 1,183 tokens per session, scanned A, original, MIT.

A set of project instructions for tracking versions and verifying files in an Agent Skills bundle. It includes rules, file hashes, release history, evaluation cases, and packaging scripts.

In plain words
What is it for?
Use it when maintaining, checking, packaging, or releasing an Agent Skills bundle, including as a Claude Code plugin or standalone upload.
Why use it?
It helps detect unexpected file changes and keep different copies of an agent skill consistent across sessions and platforms.

Instructions file

not rated 7 7d ago A scan 1,183 tokens original MIT
View the source file snapsynapse/skill-provenance
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 instructions/snapsynapse/skill-provenance/claude-md
Clone the repo
git clone --depth 1 https://github.com/snapsynapse/skill-provenance

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for skill-provenance CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/snapsynapse/skill-provenance/claude-md.svg)](https://agentmods.dev/instructions/snapsynapse/skill-provenance/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/snapsynapse/skill-provenance/claude-md"><img src="https://agentmods.dev/badge/instructions/snapsynapse/skill-provenance/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,183 This file is loaded in full into every session.
When invoked 1,183 The same file — it is already loaded in full.
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 $0.01183 $0.01183
Opus 5 $0.00592 $0.00592
Sonnet 5 $0.00237 $0.00237
Haiku 4.5 $0.00118 $0.00118

Measured 5d ago against content hash 4f8794b0b0a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-provenance CLAUDE.md 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 5d ago.

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.

CLAUDE.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Provenance

A metaskill for version tracking across Agent Skills sessions, surfaces, and platforms. This is a skill bundle project, not a library.

Canonical site: https://skillprovenance.dev/ | Repo: snapsynapse/skill-provenance (public, MIT). Ships as a Claude Code plugin and as a standalone .skill upload. Zero external dependencies by design (bash + shasum/sha256sum + awk + zip only).

Key files

  • skill-provenance/SKILL.md -- the skill definition (what agents read)
  • skill-provenance/MANIFEST.yaml -- file inventory with roles, versions, SHA-256 hashes
  • skill-provenance/CHANGELOG.md -- rolling recent history (last 5 entries)
  • skill-provenance/evals.json -- 41 core evaluation scenarios
  • skill-provenance/evals-distribution.json -- 18 supplemental distribution evals
  • skill-provenance/validate.sh -- local hash verification script
  • skill-provenance/package.sh -- derived copy generator (strict/ClawHub)
  • skill-provenance/references/standalone-verification.md -- no-plugin verify/bootstrap path
  • verify.sh -- standalone wrapper pinned to the canonical validator
  • action.yml -- GitHub Actions Marketplace wrapper for bundle validation
  • CHANGELOG.md -- full append-only repo history
  • AGENTS.md -- detailed guide for agents working on this repo

Claude Code plugin

This repo doubles as a Claude Code plugin. The plugin structure:

  • .claude-plugin/plugin.json -- plugin manifest (name, version, metadata)
  • .claude-plugin/marketplace.json -- marketplace listing for self-hosted install
  • skills/open/SKILL.md -- /skill-provenance:open (verify bundle on session start)
  • skills/close/SKILL.md -- /skill-provenance:close (update versions on session end)
  • skills/handoff/SKILL.md -- /skill-provenance:handoff (generate handoff note)
  • skills/bootstrap/SKILL.md -- /skill-provenance:bootstrap (version an unversioned bundle)
  • skills/skill-provenance -- symlink to skill-provenance/ for the monolithic skill

The five focused skills extract specific workflows from the monolithic SKILL.md. The symlink preserves /skill-provenance:skill-provenance as the full monolithic skill.

Read the full file on GitHub · 87 lines

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. 5d ago First seen · 87 lines · 1,183 tokens per session scan A 4f8794b0b0a1

Subscribe to this mod's changes

skill-provenance CLAUDE.md is an instructions file published in the GitHub repository snapsynapse/skill-provenance (7 stars, last pushed 7d ago), licensed MIT. It adds 1,183 tokens to every session, about $0.0059 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.

Git and workflowLLMReleasesagentskillsai-agentsclaude-aideveloper-toolsgemini
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