evolving-config

evolving-config is a skill for Codex from alexei-led/cc-thingz. It costs 92 tokens per session (1,192 once invoked), scanned A, original, MIT.

A review and improvement workflow for configuration files that control AI coding agents, including their instructions, permissions, hooks, and tool connections. It checks the setup using local files and current vendor documentation.

In plain words
What is it for?
Use it to audit or improve Codex, Claude Code, Pi, skills, agents, hooks, MCP connections, permissions, packages, and generated configuration exports.
Why use it?
It helps find unclear, unsafe, outdated, or conflicting agent settings before they cause mistakes. Reviews do not change files by default; fixes require explicit approval.

Skill for Codex

Written for Codex: reads ~/.codex or $CODEX_HOME. Also seen: mentions CLAUDE.md; mentions subagents; mentions Claude Code.

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/alexei-led/cc-thingz/evolving-config
Any agent
npx skills add alexei-led/cc-thingz --skill evolving-config
Clone the repo
git clone --depth 1 https://github.com/alexei-led/cc-thingz

Made for: 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 evolving-config

README.md
[![agentmods](https://agentmods.dev/badge/skills/alexei-led/cc-thingz/evolving-config.svg)](https://agentmods.dev/skills/alexei-led/cc-thingz/evolving-config)
Your own site
<a href="https://agentmods.dev/skills/alexei-led/cc-thingz/evolving-config"><img src="https://agentmods.dev/badge/skills/alexei-led/cc-thingz/evolving-config.svg" alt="Measured on agentmods" height="20"></a>
Per session 92 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,192 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 5.1 $0.00092 $0.01192
Opus 5 $0.00046 $0.00596
Sonnet 5 $0.00018 $0.00238
Haiku 4.5 $0.00009 $0.00119

Measured 6d ago against content hash 1edaaa679baa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

evolving-config scanned grade A with 1 finding 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 6d 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.

Reads agent configuration directorieslowAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- Codex: `.codex/`, `~/.codex/config.toml`, project config, profiles, sandbox, approvals, MCP, skills, subagents.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

src/skills/evolving-config/SKILL.md · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Evolving Agent Configuration

Audit AI coding-agent configuration with local evidence first and current vendor docs second. Default to review-only. Apply fixes only after explicit approval.

Read first

  • references/RUBRIC.md for shared review dimensions and severity.
  • references/platforms/claude-code.md for Claude Code surfaces.
  • references/platforms/codex.md for Codex surfaces.
  • references/platforms/pi.md for Pi surfaces.
  • references/apply-fixes.md only when the user asks to fix or passes --fix.

Modes

Review-only is the default for prompts such as "review my config", "audit config", "check setup", or "what should I improve".

Fix mode starts only when the user explicitly asks for changes or passes --fix. Even in fix mode, ask before risky changes: permissions, sandbox policy, hooks, MCP servers, model routing, deletes, moves, broad rewrites, or private config.

Scope

Review these AI-agent configuration surfaces:

  • Instruction files: AGENTS.md, CLAUDE.md, command prompts, skill and agent bodies.
  • Claude Code: .claude/, user/project/local settings, hooks, skills, agents, MCP, permissions.
  • Codex: .codex/, ~/.codex/config.toml, project config, profiles, sandbox, approvals, MCP, skills, subagents.
  • Pi: .pi/, ~/.pi/agent/, settings, packages, skills, extensions, prompts, themes, context files.
  • Plugin/package manifests and source-to-generated export rules.
  • chezmoi or dotfile copies only when deployment is part of the request.

Do not review:

  • app runtime config
  • git hook hygiene
  • score-only instruction prose or prompt quality; use reviewing-instructions
  • product docs
  • source-code quality
  • generated output as the source of truth

Workflow

  1. Identify the requested platform, config root, and mode.
  2. If ambiguous, list detected config surfaces and ask which to audit.
  3. Inventory relevant files with paths, sizes, and source/generated status.
  4. Read current files before recommending changes.
  5. Use the platform reference and shared rubric to check expected structure, high-risk settings, invocation fit, and always-loaded context cost.
  6. When the audit touches skills, agents, prompts, or package manifests, inspect thin-router risk, weak pointers to must-read support files, and whether plugin grouping forces unrelated instructions into startup context.
  7. Use official docs or changelogs when syntax, feature availability, or deprecation status is uncertain.
  8. Use broad web research only for gaps or ecosystem comparisons; do not recommend changes from uncited blogs alone.
  9. Classify findings by impact and disruption.
  10. In fix mode, apply only approved changes and verify with available validation commands.

Read the full file on GitHub · 133 lines

Files

What ships with it

6 files 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. 6d ago First seen · 133 lines · 92 tokens per session scan A 1edaaa679baa

Subscribe to this mod's changes

evolving-config is a skill published in the GitHub repository alexei-led/cc-thingz (35 stars, last pushed 1mo ago), licensed MIT. It adds 92 tokens to every session and 1,192 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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