Agent skill

Maintain Codex Wiki

by aiskillstore in aiskillstore/marketplace

Maintain a review-first Markdown knowledge base for Codex practices with source provenance, engineering capture, citation-aware queries, explicit archive and promotion, and deterministic linting.

No licenceAuto-check: notesKnowledge Management

Install Maintain Codex Wiki

skills CLI
$ npx skills add aiskillstore/marketplace --skill maintain-codex-wiki -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install aiskillstore/marketplace maintain-codex-wiki --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/phelan164/maintain-codex-wiki .claude/skills/maintain-codex-wiki && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
maintain-codex-wiki
GitHub stars
430
Used in
1 other repo
Token cost
~2k tokens
SKILL.md length
1,034 words
Files
6 (incl. scripts, references)
Skills in repo
1,108
Repo updated
First seen
Licence
None found

At a glance

Maintain a review-first Markdown knowledge base for Codex practices with source provenance, engineering capture, citation-aware queries, explicit archive and promotion, and deterministic linting.

  • Works in 5 steps: require a normalized project-relative… → reject absolute paths and .. components; → resolve symlinks; → …
  • Asked to capture a durable engineering lesson
  • SKILL.md covers Choose one operation, Confinement invariant, Untrusted knowledge content and Query, plus 6 more sections
  • Runs Python scripts from its folder; calls python3

What it does

Maintain Codex Wiki is an agent skill from aiskillstore/marketplace. Maintain a review-first Markdown knowledge base for Codex practices with source provenance, engineering capture, citation-aware queries, explicit archive and promotion, and deterministic linting. Use when asked to capture a durable engineering lesson, ingest Codex research, query or archive what the repository knows, check wiki health, reconcile conflicting guidance, or promote verified knowledge.

Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/article-template.md` and `references/source-policy.md`).

It sits in Knowledge Management, covering Linting and formatting, Citation management and Knowledge bases. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.

When your agent uses it

  • Asked to capture a durable engineering lesson
  • Ingest Codex research
  • Archive what the repository knows
  • Check wiki health

Example prompts

  • “/maintain-codex-wiki”

Requirements

  • Python 3

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. require a normalized project-relative path;
  2. reject absolute paths and .. components;
  3. resolve symlinks;
  4. for an existing read or update target, require a regular file and verify the
  5. for a new page, require a nonexistent target under an existing,

What it can do on your machine

Read from SKILL.md and the folder at commit ad8daf7. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python3

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Maintain Codex Wiki loads about 2k tokens when it runs, and up to ~3.1k if it reads all its reference files. Until then it costs about 105 tokens; SKILL.md has 1,034 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~105
When it runs · the whole SKILL.md, loaded when a task matches
~2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteMentions a .env fileSKILL.md:55
    licy or common credential names such as `.env*`, private keys, credential or

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 1,034 words (~1,953 tokens).

“Treat the wiki as compiled maintainer knowledge, not as an automatic source of truth. Keep official documentation authoritative and require human review before shared knowledge or curriculum changes land.”

— opening of SKILL.md by aiskillstore
name
maintain-codex-wiki

Read the full SKILL.md on GitHub

Files

SKILL.md and 5 other files (scripts, references) in skills/phelan164/maintain-codex-wiki of aiskillstore/marketplace.

  • SKILL.md
  • agents/openai.yaml
  • references/article-template.md
  • references/source-policy.md
  • scripts/wiki_lint.py
  • skill-report.json

Open the folder on GitHubat commit ad8daf7

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Maintain Codex Wiki next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Maintain Codex Wiki compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Maintain Codex Wiki this skillaiskillstore/marketplace4301 repos~2kAutomated safety check: NotesNone
LLM Wikilewislulu/llm-wiki-skill655—~3.7kAutomated safety check: PassNone
Kbcompozy/kb110—~4.2kAutomated safety check: PassMIT
LLM WikiCharlesHoskinson/sevenlayer116—~1.5kAutomated safety check: PassCustom licence
Open Knowledgeinkeep/open-knowledge4.4k—~4.7kAutomated safety check: PassGPL-3.0
Knowledge Base Health Lintjason-effi-lab/karpathy-llm-wiki-vault716—~336Automated safety check: PassNone

Similar skills

  • LLM Wiki

    lewislulu/llm-wiki-skill

    Build and maintain a Karpathy-style LLM knowledge base — a self-compiling Obsidian markdown wiki where an Agent ingests raw sources, compiles cross-linked concept/entity/summary pages, answers…

    655 GitHub stars~3.7k tokensUpdated 5 mo ago
    Knowledge ManagementAuto-check passed
  • Kb

    compozy/kb

    Operate the kb CLI to build and maintain topic-based Karpathy-style knowledge bases: gated ingestion, decision-model classification, linking, retrieval and review, wiki compilation, lint-and-heal…

    110 GitHub stars~4.2k tokensUpdated 13 days ago
    Knowledge ManagementAuto-check passed
  • LLM Wiki

    CharlesHoskinson/sevenlayer

    Builds and maintains a persistent, interlinked Obsidian-compatible markdown knowledge wiki in a git repo via three operations — ingest a source into linked pages, answer a question from the…

    116 GitHub stars~1.5k tokensUpdated 1 mo ago
    Knowledge ManagementAuto-check passed
  • Open Knowledge

    inkeep/open-knowledge

    Authoritative agent-runtime contract for working inside an OpenKnowledge project — a markdown-CRDT knowledge base exposed over MCP.

    4.4k GitHub stars~4.7k tokensUpdated today
    Knowledge ManagementAuto-check passed
  • Knowledge Base Health Lint

    jason-effi-lab/karpathy-llm-wiki-vault

    Scans an Obsidian-style wiki for broken double-link references, orphan pages, files missing from the index and unresolved knowledge conflicts, then reports the findings.

    716 GitHub stars~336 tokensUpdated 5 mo ago
    Knowledge ManagementAuto-check passed
  • Lint

    HurricaHjz/second-yourself

    Health-check the Obsidian wiki — the "static analysis" pass for a knowledge base.

    114 GitHub stars~6.3k tokensUpdated 6 days ago
    Knowledge ManagementAuto-check passed

More from aiskillstore/marketplace

All 1,108 skills in this repo
  • Code Stats

    aiskillstore/marketplace

    Analyze codebase with tokei (fast line counts by language) and difft (semantic AST-aware diffs).

    430 GitHub starsUsed in 2 repos~697 tokens
    Auto-check: notes
  • File Search

    aiskillstore/marketplace

    Modern file and content search using fd, ripgrep (rg), and fzf.

    430 GitHub starsUsed in 2 repos~598 tokens
    Auto-check: notes
  • Data Processing

    aiskillstore/marketplace

    Process JSON with jq and YAML/TOML with yq. An agent skill from aiskillstore/marketplace.

    430 GitHub starsUsed in 1 repo~720 tokens
    Auto-check: notes
  • Doc Scanner

    aiskillstore/marketplace

    Scans for project documentation files (AGENTS.md, CLAUDE.md, GEMINI.md, COPILOT.md, CURSOR.md, WARP.md, and 15+ other formats) and synthesizes guidance.

    430 GitHub starsUsed in 1 repo~644 tokens
    Auto-check: notes
  • Find Replace

    aiskillstore/marketplace

    Modern find-and-replace using sd (simpler than sed) and batch replacement patterns.

    430 GitHub starsUsed in 1 repo~527 tokens
    Auto-check: notes
  • Investigating Codebases

    aiskillstore/marketplace

    Automatically activated when user asks how something works, wants to understand unfamiliar code, needs to explore a new codebase, or asks questions like "where is X implemented?", "how does Y…

    430 GitHub starsUsed in 1 repo~2.7k tokens
    Auto-check: notes

Questions about Maintain Codex Wiki

What does Maintain Codex Wiki do?

Maintain a review-first Markdown knowledge base for Codex practices with source provenance, engineering capture, citation-aware queries, explicit archive and promotion, and deterministic linting. Maintain Codex Wiki is an agent skill from aiskillstore/marketplace. Maintain a review-first Markdown knowledge base for Codex practices with source provenance, engineering capture, citation-aware queries, explicit archive and promotion, and deterministic linting.

When should I use Maintain Codex Wiki?

Maintain Codex Wiki fits situations like: asked to capture a durable engineering lesson; ingest Codex research; archive what the repository knows; check wiki health.

How do I install Maintain Codex Wiki in Claude Code?

Run `npx skills add aiskillstore/marketplace --skill maintain-codex-wiki -a claude-code`. Or copy the skill folder (skills/phelan164/maintain-codex-wiki in aiskillstore/marketplace) into .claude/skills/maintain-codex-wiki in your project. Claude Code loads it when a task matches its description.

How do I install Maintain Codex Wiki in Codex?

Run `npx skills add aiskillstore/marketplace --skill maintain-codex-wiki -a codex`. Or copy the skill folder (skills/phelan164/maintain-codex-wiki in aiskillstore/marketplace) into .agents/skills/maintain-codex-wiki in your project. Codex loads it when a task matches its description.

Can I use Maintain Codex Wiki in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill maintain-codex-wiki -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/maintain-codex-wiki, .gemini/skills/maintain-codex-wiki, .github/skills/maintain-codex-wiki and .opencode/skills/maintain-codex-wiki in your project.

What does Maintain Codex Wiki need to run?

Going by SKILL.md and its folder, Maintain Codex Wiki needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3.

Does Maintain Codex Wiki access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Maintain Codex Wiki safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Maintain Codex Wiki use?

No licence was found for Maintain Codex Wiki or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Maintain Codex Wiki use?

About 2k tokens (SKILL.md is roughly 7.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.1k tokens, read only when the agent opens those files.

What are the alternatives to Maintain Codex Wiki?

Skills that share tags, products or a category with Maintain Codex Wiki: LLM Wiki (lewislulu/llm-wiki-skill, 655 stars), Kb (compozy/kb, 110 stars), LLM Wiki (CharlesHoskinson/sevenlayer, 116 stars) and Open Knowledge (inkeep/open-knowledge, 4.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Maintain Codex Wiki?

aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,108 skills in this directory. The repository was last updated on October 7, 2026.

Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.