Agent skill

Trajex

Search and query past Claude Code, Codex, and Pi session history.

No licenceAuto-check passedAgent Workflows

Install Trajex

skills CLI

$ npx skills add wutongyuonce/Trajex --skill trajex -a claude-code

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

GitHub CLI

$ gh skill install wutongyuonce/Trajex trajex --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/wutongyuonce/Trajex.git skills-src && mkdir -p .claude/skills && cp -r skills-src/trajex-skill .claude/skills/trajex && 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/

Paste into Claude Code

Install the "trajex" agent skill from https://github.com/wutongyuonce/Trajex/tree/HEAD/trajex-skill into .claude/skills/trajex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trajex", 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

$skill-installer install https://github.com/wutongyuonce/Trajex/tree/main/trajex-skill

Type 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.

skills CLI

$ npx skills add wutongyuonce/Trajex --skill trajex -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install wutongyuonce/Trajex trajex --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/wutongyuonce/Trajex.git skills-src && mkdir -p .agents/skills && cp -r skills-src/trajex-skill .agents/skills/trajex && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "trajex" agent skill from https://github.com/wutongyuonce/Trajex/tree/HEAD/trajex-skill into .agents/skills/trajex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trajex", 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.

skills CLI

$ npx skills add wutongyuonce/Trajex --skill trajex -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install wutongyuonce/Trajex trajex --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/wutongyuonce/Trajex.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/trajex-skill .cursor/skills/trajex && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "trajex" agent skill from https://github.com/wutongyuonce/Trajex/tree/HEAD/trajex-skill into .cursor/skills/trajex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trajex", 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

$ gemini skills install https://github.com/wutongyuonce/Trajex.git --path trajex-skill

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add wutongyuonce/Trajex --skill trajex -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install wutongyuonce/Trajex trajex --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/wutongyuonce/Trajex.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/trajex-skill .gemini/skills/trajex && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "trajex" agent skill from https://github.com/wutongyuonce/Trajex/tree/HEAD/trajex-skill into .gemini/skills/trajex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trajex", 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.

GitHub CLI

$ gh skill install wutongyuonce/Trajex trajex

Installs 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).

skills CLI

$ npx skills add wutongyuonce/Trajex --skill trajex -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/wutongyuonce/Trajex.git skills-src && mkdir -p .github/skills && cp -r skills-src/trajex-skill .github/skills/trajex && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "trajex" agent skill from https://github.com/wutongyuonce/Trajex/tree/HEAD/trajex-skill into .github/skills/trajex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trajex", 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.

skills CLI

$ npx skills add wutongyuonce/Trajex --skill trajex -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install wutongyuonce/Trajex trajex --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/wutongyuonce/Trajex.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/trajex-skill .opencode/skills/trajex && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "trajex" agent skill from https://github.com/wutongyuonce/Trajex/tree/HEAD/trajex-skill into .opencode/skills/trajex/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "trajex", 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: trajex
GitHub stars: 0
Token cost: ~5.3k tokens
SKILL.md length: 2,503 words
Files: 6 (incl. references)
Skills in repo: 1
First seen: Oct 7, 2026
Licence: None found

At a glance

Search and query past Claude Code, Codex, and Pi session history.

Works in 3 steps: Write a bounded JS query to a temp file,… → Run → Parse JSON stdout and answer with…
Asks how did I fix X
SKILL.md covers Quick Start, Sandbox Write Access, Default First Pass and Reference Map, plus 7 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Trajex is an agent skill from wutongyuonce/Trajex. Search and query past Claude Code, Codex, and Pi session history. Reactive: when the user asks "how did I fix X", "what did we do last time", "find the session where", "resume session", "上次怎么修的", "之前的session", "历史记录". Proactive: when the user references past work you lack context for, when you're about to modify a file with complex edit history, when the user says "继续之前的" or "continue where we left off", or when understanding prior decisions would improve your current response. Memory: when the user says "记住这个"…

Its SKILL.md is about 5.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `references/api-reference.md`, `references/pitfalls.md` and `references/query-patterns.md`).

It sits in Agent Workflows, covering Session handoff.

When your agent uses it

Asks how did I fix X
What did we do last time
Find the session where
References past work you lack context for

Example prompts

“how did I fix X”
“what did we do last time”
“find the session where”
“/trajex”

Requirements

Pre-approved tools (allowed-tools): Read, Bash(trajex:*), Write

Workflow steps

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

Write a bounded JS query to a temp file, for example /tmp/q.mjs.
Run
Parse JSON stdout and answer with concise evidence.

What it can do on your machine

Read from SKILL.md and the folder at commit f2f1171. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Read
- Bash(trajex:*)
- Write
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript and bash).
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

Trajex loads about 5.3k tokens when it runs, and up to ~21k if it reads all its reference files. Until then it costs about 164 tokens; SKILL.md has 2,503 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~164
When it runs · the whole SKILL.md, loaded when a task matches: ~5.3k
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~21k

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); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 2,503 words (~5,267 tokens).

“Search and query Claude Code, Codex, and Pi session history from their configured local transcript roots. Defaults are ~/.claude/, ~/.codex/, and Pi's ~/.pi/agent/sessions. Pi may additionally use a session directory selected in App Settings; the configured value is already the…”

— opening of SKILL.md by wutongyuonce

name: trajex
allowed-tools: Read, Bash(trajex:*), Write

Read the full SKILL.md on GitHub

Files

SKILL.md and 5 other files (references) in trajex-skill of wutongyuonce/Trajex.

SKILL.md
references/api-reference.md
references/pitfalls.md
references/query-patterns.md
references/retrieval-semantics.md
references/schema.md

Open the folder on GitHubat commit f2f1171

Compare with similar skills

Trajex 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.

Trajex compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Trajex this skillwutongyuonce/Trajex	0	—	~5.3k	Automated safety check: Pass	None	—
Orca CLIstablyai/orca	89k	2 repos	~593	Automated safety check: Pass	MIT	today
Beads Task Memorygastownhall/beads	28k	—	~1.2k	Automated safety check: Pass	MIT	today
Session History Searchslopus/happy	24k	—	~3.1k	Automated safety check: Pass	MIT	today
Paseo Agent Handoffgetpaseo/paseo	20k	1 repos	~606	Automated safety check: Pass	Custom licence	yesterday
Memori Long-Term MemoryMemoriLabs/Memori	17k	—	~2k	Automated safety check: Notes	Custom licence	7 days ago

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Tracks multi-session work with dependencies in the bd issue tracker so the agent can find ready tasks and recover its context after conversation compaction.
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Session History Search
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24k GitHub stars~3.1k tokensUpdated today
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Memori Long-Term Memory
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Questions about Trajex

What does Trajex do?

Search and query past Claude Code, Codex, and Pi session history. Trajex is an agent skill from wutongyuonce/Trajex. Search and query past Claude Code, Codex, and Pi session history.

When should I use Trajex?

Trajex fits situations like: asks how did I fix X; what did we do last time; find the session where; references past work you lack context for.

How do I install Trajex in Claude Code?

Run `npx skills add wutongyuonce/Trajex --skill trajex -a claude-code`. Or copy the skill folder (trajex-skill in wutongyuonce/Trajex) into .claude/skills/trajex in your project. Claude Code loads it when a task matches its description.

How do I install Trajex in Codex?

Run `npx skills add wutongyuonce/Trajex --skill trajex -a codex`. Or copy the skill folder (trajex-skill in wutongyuonce/Trajex) into .agents/skills/trajex in your project. Codex loads it when a task matches its description.

Can I use Trajex 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 wutongyuonce/Trajex --skill trajex -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/trajex, .gemini/skills/trajex, .github/skills/trajex and .opencode/skills/trajex in your project.

What does Trajex need to run?

SKILL.md names no scripts, command-line tools or credentials: Trajex is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Bash(trajex:*), Write.

Does Trajex 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 Trajex 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. Review the folder before installing.

What licence does Trajex use?

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

How many tokens does Trajex use?

About 5.3k tokens (SKILL.md is roughly 21k 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 16k tokens, read only when the agent opens those files.

What are the alternatives to Trajex?

Skills that share tags, products or a category with Trajex: Orca CLI (stablyai/orca, 89k stars), Beads Task Memory (gastownhall/beads, 28k stars), Session History Search (slopus/happy, 24k stars) and Paseo Agent Handoff (getpaseo/paseo, 20k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Trajex?

wutongyuonce (a GitHub organization) maintains it in wutongyuonce/Trajex, which has 0 GitHub stars.

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

Install Trajex

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

Orca CLI

Beads Task Memory

Session History Search

Paseo Agent Handoff

Memori Long-Term Memory

Beads

Related

Questions about Trajex