skill-registry

skill-registry is a skill for Claude Code, Codex from Gentleman-Programming/gentle-ai. It costs 27 tokens per session (524 once invoked), scanned A, original, MIT.

A searchable index of the skills available to coding agents, organized by the situations that trigger them and their file paths. The skill files themselves remain the source of truth.

In plain words
What is it for?
Use it after skill changes to scan available skills, remove duplicates, record their locations, and write an updated .atl/skill-registry.md index.
Why use it?
After skills are added, removed, moved, or renamed, agents can otherwise search blindly or use an outdated list. The index makes the correct skill easier to find and delegate.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it after skill changes to scan available skills, remove duplicates, record their locations, and write an updated .atl/skill-registry.md index.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gentleman-programming/gentle-ai/skill-registry
About the project

Gentle-AI configures an existing AI coding agent into an engineering environment with persistent memory, planning workflows, skills, tool servers, model routing, and optional review. Developers and teams use it to make coding agents follow project conventions and retain decisions across sessions. The catalogue entries are its skills, commands, agents, and instruction.

Gentleman-Programming/gentle-ai · 6,328 stars · on GitHub · gentle-ai.gentlemanprogramming.com

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.

Any agent
npx skills add Gentleman-Programming/gentle-ai --skill skill-registry
Clone the repo
git clone --depth 1 https://github.com/Gentleman-Programming/gentle-ai

Made for: Claude Code, Codex.

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-registry

README.md
[![agentmods](https://agentmods.dev/badge/skills/gentleman-programming/gentle-ai/skill-registry.svg)](https://agentmods.dev/skills/gentleman-programming/gentle-ai/skill-registry)
Your own site
<a href="https://agentmods.dev/skills/gentleman-programming/gentle-ai/skill-registry"><img src="https://agentmods.dev/badge/skills/gentleman-programming/gentle-ai/skill-registry.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 524 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Rogue Agent · line 3
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
How audits are shown
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 5.1 $0.00027 $0.00524
Opus 5 $0.00014 $0.00262
Sonnet 5 $0.00005 $0.00105
Haiku 4.5 $0.00003 $0.00052

Measured 5d ago against content hash 06b49f63bd31, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

skill-registry 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

internal/assets/skills/skill-registry/SKILL.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Activation Contract

Use this skill after installing, removing, creating, moving, or renaming skills, or when a delegator needs a fresh skill index.

Hard Rules

  • The registry is an index, not a compiler or summary. SKILL.md remains the source of truth.
  • Do not generate or inject compact rules by default; preserve author intent by passing exact skill paths to subagents.
  • Always write .atl/skill-registry.md regardless of SDD persistence mode.
  • Save the registry to Engram as topic_key: skill-registry when available, with capture_prompt: false.
  • Skip sdd-*, _shared, and skill-registry; deduplicate by skill name, preferring project-level skills over user-level skills.
  • Add .atl/ to .gitignore when possible unless explicitly disabled.

Decision Gates

Situation Action
Same skill exists globally and in project Keep the project-level skill
Same skill exists in multiple global locations Keep the first source in scan order
No skills found Write an empty registry so agents stop searching blindly
Agent will delegate work Select matching registry rows and pass their SKILL.md paths

Execution Steps

  1. Scan all known user and project skill directories for */SKILL.md.
  2. Read frontmatter only as needed to extract name and description trigger text.
  3. Render .atl/skill-registry.md with scanned sources, registry contract, skill name, trigger/description, scope, and exact path.
  4. Persist to Engram when available using title: skill-registry, topic_key: skill-registry, type: config, and capture_prompt: false.
  5. Return the registry path, skill count, cache status, and whether Engram was updated.

Output Contract

Return:

  • Project name and .atl/skill-registry.md path.
  • Number of indexed skills.
  • Whether the cache was hit or regenerated.
  • Any skipped or duplicate skills when relevant.

References

  • docs/skill-style-guide.md — how skills should be authored before indexing.
  • skills/_shared/skill-resolver.md — how delegators use the index.

Read the full file on GitHub · 52 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. 8d ago First seen · 52 lines · 27 tokens per session scan A 06b49f63bd31

Subscribe to this mod's changes

skill-registry is a skill published in the GitHub repository Gentleman-Programming/gentle-ai (6,328 stars, last pushed yesterday), licensed MIT. It adds 27 tokens to every session and 524 once invoked, about $0.0001 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 2026-08-30.

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