MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
A skill your agent uses when recovering a Codex session, especially if the user provides a Codex session id or wants recent Codex sessions listed before resuming work.
No licenceAuto-check passed
Install Session Recovery Codex
$ npx skills add cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cnfjlhj/ai-collab-playbook session-recovery-codex --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/cnfjlhj/ai-collab-playbook.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/full/session-recovery-codex .claude/skills/session-recovery-codex && rm -rf skills-srcUse ~/.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/
Install the "session-recovery-codex" agent skill from https://github.com/cnfjlhj/ai-collab-playbook/tree/main/skills/full/session-recovery-codex into .claude/skills/session-recovery-codex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-recovery-codex", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/cnfjlhj/ai-collab-playbook/tree/main/skills/full/session-recovery-codexType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cnfjlhj/ai-collab-playbook session-recovery-codex --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cnfjlhj/ai-collab-playbook.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/full/session-recovery-codex .agents/skills/session-recovery-codex && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "session-recovery-codex" agent skill from https://github.com/cnfjlhj/ai-collab-playbook/tree/main/skills/full/session-recovery-codex into .agents/skills/session-recovery-codex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-recovery-codex", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cnfjlhj/ai-collab-playbook session-recovery-codex --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cnfjlhj/ai-collab-playbook.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/full/session-recovery-codex .cursor/skills/session-recovery-codex && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "session-recovery-codex" agent skill from https://github.com/cnfjlhj/ai-collab-playbook/tree/main/skills/full/session-recovery-codex into .cursor/skills/session-recovery-codex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-recovery-codex", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/cnfjlhj/ai-collab-playbook.git --path skills/full/session-recovery-codex--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cnfjlhj/ai-collab-playbook session-recovery-codex --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cnfjlhj/ai-collab-playbook.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/full/session-recovery-codex .gemini/skills/session-recovery-codex && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "session-recovery-codex" agent skill from https://github.com/cnfjlhj/ai-collab-playbook/tree/main/skills/full/session-recovery-codex into .gemini/skills/session-recovery-codex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-recovery-codex", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install cnfjlhj/ai-collab-playbook session-recovery-codexInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cnfjlhj/ai-collab-playbook.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/full/session-recovery-codex .github/skills/session-recovery-codex && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "session-recovery-codex" agent skill from https://github.com/cnfjlhj/ai-collab-playbook/tree/main/skills/full/session-recovery-codex into .github/skills/session-recovery-codex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-recovery-codex", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cnfjlhj/ai-collab-playbook session-recovery-codex --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cnfjlhj/ai-collab-playbook.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/full/session-recovery-codex .opencode/skills/session-recovery-codex && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "session-recovery-codex" agent skill from https://github.com/cnfjlhj/ai-collab-playbook/tree/main/skills/full/session-recovery-codex into .opencode/skills/session-recovery-codex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "session-recovery-codex", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
session-recovery-codex- GitHub stars
- 454
- Token cost
- ~295 tokens
- SKILL.md length
- 80 words
- Files
- 4 (incl. scripts)
- Skills in repo
- 17
- Repo updated
- First seen
- Licence
- None found
At a glance
A skill your agent uses when recovering a Codex session, especially if the user provides a Codex session id or wants recent Codex sessions listed before resuming work.
- Works in 2 steps: 将脚本输出的最近 5 个会话概览展示给用户，并让用户输入要恢复的序号（1–5）。 → 用户选择后，拿到对应 session id，再运行统一入口脚本做精确恢复
- Recovering a Codex session
- SKILL.md covers 使用流程 and 注意事项
- Runs Python scripts from its folder; calls python3
What it does
Session Recovery Codex is an agent skill from cnfjlhj/ai-collab-playbook. Use when recovering a Codex session, especially if the user provides a Codex session id or wants recent Codex sessions listed before resuming work.
Its SKILL.md is about 300 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts (for example `scripts/analyze-session.py`, `scripts/list-sessions.py` and `scripts/recover-session.py`).
It works with Python. The repository describes itself as: Practical AI collaboration playbook for research, writing, reading, and coding: article, prompts, agent rules, and reusable skills.
When your agent uses it
- Recovering a Codex session
- Especially if the user provides a Codex session id
- Wants recent Codex sessions listed before resuming work
Example prompts
- “/session-recovery-codex”
Requirements
- Python 3
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- 将脚本输出的最近 5 个会话概览展示给用户，并让用户输入要恢复的序号（1–5）。
- 用户选择后，拿到对应 session id，再运行统一入口脚本做精确恢复
What it can do on your machine
Read from SKILL.md and the folder at commit b3ee0d6. 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 3 files 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
Session Recovery Codex loads about 295 tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 80 words of instructions outside code blocks.
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 passed
The automated check found no risky patterns in SKILL.md.
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 80 words (~295 tokens).
“当用户消息里已经包含形如 019b6d01-790f-7a32-9d75-932700db98a4 的 session id 时：”
- name
- session-recovery-codex
Files
SKILL.md and 3 other files (scripts) in skills/full/session-recovery-codex of cnfjlhj/ai-collab-playbook.
- SKILL.md
- scripts/analyze-session.py
- scripts/list-sessions.py
- scripts/recover-session.py
Open the folder on GitHubat commit b3ee0d6
Compare with similar skills
Session Recovery Codex 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Session Recovery Codex this skillcnfjlhj/ai-collab-playbook | 454 | — | ~295 | Automated safety check: Pass | None | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| PDF Processinganthropics/skills | 180k | 47 repos | ~2k | Automated safety check: Pass | Proprietary | |
| NotebookLM Research AssistantPleasePrompto/notebooklm-skill | 7.8k | 14 repos | ~2.4k | Automated safety check: Notes | MIT | |
| Manim Video Productionbrowser-use/video-use | 29k | 6 repos | ~3k | Automated safety check: Pass | MIT | |
| PPT Masterhugohe3/ppt-master | 59k | 1 repos | ~2.5k | Automated safety check: Pass | MIT |
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Related
Works with
Questions about Session Recovery Codex
What does Session Recovery Codex do?
A skill your agent uses when recovering a Codex session, especially if the user provides a Codex session id or wants recent Codex sessions listed before resuming work. Session Recovery Codex is an agent skill from cnfjlhj/ai-collab-playbook. Use when recovering a Codex session, especially if the user provides a Codex session id or wants recent Codex sessions listed before resuming work.
When should I use Session Recovery Codex?
Session Recovery Codex fits situations like: recovering a Codex session; especially if the user provides a Codex session id; wants recent Codex sessions listed before resuming work.
How do I install Session Recovery Codex in Claude Code?
Run `npx skills add cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a claude-code`. Or copy the skill folder (skills/full/session-recovery-codex in cnfjlhj/ai-collab-playbook) into .claude/skills/session-recovery-codex in your project. Claude Code loads it when a task matches its description.
How do I install Session Recovery Codex in Codex?
Run `npx skills add cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a codex`. Or copy the skill folder (skills/full/session-recovery-codex in cnfjlhj/ai-collab-playbook) into .agents/skills/session-recovery-codex in your project. Codex loads it when a task matches its description.
Can I use Session Recovery Codex 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 cnfjlhj/ai-collab-playbook --skill session-recovery-codex -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/session-recovery-codex, .gemini/skills/session-recovery-codex, .github/skills/session-recovery-codex and .opencode/skills/session-recovery-codex in your project.
What does Session Recovery Codex need to run?
Going by SKILL.md and its folder, Session Recovery Codex needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3.
Does Session Recovery Codex 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 Session Recovery Codex safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. 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 Session Recovery Codex use?
No licence was found for Session Recovery Codex or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Session Recovery Codex use?
About 295 tokens (SKILL.md is roughly 1.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Session Recovery Codex?
Skills that share tags, products or a category with Session Recovery Codex: MCP Server Builder (anthropics/skills, 180k stars), PDF Processing (anthropics/skills, 180k stars), NotebookLM Research Assistant (PleasePrompto/notebooklm-skill, 7.8k stars) and Manim Video Production (browser-use/video-use, 29k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Session Recovery Codex?
cnfjlhj (a GitHub user) maintains it in cnfjlhj/ai-collab-playbook, which has 454 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on September 14, 2026.
Source: cnfjlhj/ai-collab-playbook on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.