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.
npx agentmods add instructions/pyrex41/skill-manager/claude-mdgit clone --depth 1 https://github.com/pyrex41/skill-managerWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.01333 | $0.01333 |
| Opus 5 | $0.00666 | $0.00666 |
| Sonnet 5 | $0.00267 | $0.00267 |
| Haiku 4.5 | $0.00133 | $0.00133 |
Grade A, and why
skill-manager 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Build & Test Commands
cargo build # Debug build
cargo build --release # Release build
cargo test # Run all tests
cargo test <test_name> # Run a single test
cargo run # Run the CLI (lists bundles)
cargo run -- <bundle> # Install a bundle
The binary is named skm (skill-manager).
Architecture
This is a Rust CLI tool for managing AI coding assistant skills across Claude, OpenCode, and Cursor. It copies skill bundles from configured sources to tool-specific locations.
Core Data Flow
- Sources (
source.rs) - Skill bundles come from local directories or git repositories - Bundles (
bundle.rs) - A bundle is a directory containingskills/,agents/, and/orcommands/subdirectories with.mdfiles - Targets (
target.rs) - Each tool (Claude/OpenCode/Cursor) has different destination paths and file transformations - Install (
install.rs) - Orchestrates copying from source bundle to target tool location
Module Responsibilities
main.rs- CLI argument parsing (clap) and command dispatchconfig.rs- TOML config file at~/.config/skm/config.toml, manages source listsource.rs-Sourcetrait withLocalSourceandGitSourceimplementations; git sources clone to cache dirbundle.rs-Bundlestruct representing a skill bundle with its filestarget.rs-Toolenum handling per-tool path conventions and file transformationsdiscover.rs- Scans directories for installed skills across all three toolsinstall.rs- Copies bundle files to target locationssetup.rs- First-run interactive setup wizard
Tool-Specific Path Mappings
| Type | Claude | OpenCode | Cursor | Codex |
|---|---|---|---|---|
| Skills | .claude/skills/{bundle}-{name}/SKILL.md |
.opencode/skills/{bundle}-{name}/SKILL.md |
.cursor/skills/{bundle}-{name}/SKILL.md |
.codex/skills/{bundle}-{name}/SKILL.md |
| Agents | .claude/agents/{bundle}/{name}.md |
.opencode/agents/{bundle}-{name}.md |
.cursor/agents/{bundle}-{name}.md |
.codex/agents/{bundle}-{name}.md |
| Commands | .claude/commands/{bundle}/{name}.md |
.opencode/commands/{bundle}-{name}.md |
.cursor/commands/{bundle}-{name}.md |
.codex/commands/{bundle}-{name}.md |
| Rules | .claude/rules/{bundle}-{name}/RULE.md |
.opencode/rules/{bundle}-{name}/RULE.md |
.cursor/rules/{bundle}-{name}/RULE.md |
.codex/rules/{bundle}-{name}/RULE.md |
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.
- 2d ago First seen · 113 lines · 1,333 tokens per session scan A 25b549a3fa61
skill-manager CLAUDE.md is an instructions file published in the GitHub repository pyrex41/skill-manager (3 stars, last pushed 6mo ago), licensed MIT. It adds 1,333 tokens to every session, about $0.0067 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.
Other instructions, from other repositories
spellbook AGENTS.md
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open-supermarkets AGENTS.md
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helm copilot-instructions.md
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flyto-core CLAUDE.md
Instructions for flytohub/flyto-core, covering claude notes, cross-agent handoff and shared code intelligence.
fusion-skills AGENTS.md
AGENTS.md instructions for CrowdStrike/fusion-skills, covering agents.md, what this is, prerequisites, repository structure and skills ecosystem.
aeon CLAUDE.md
Instructions for aeonfun/aeon, covering aeon, how aeon works, strategy, voice and soul file hierarchy (read in this order).