Agent skill

Tach

This skill should be used when the user asks to "add a tach module", "configure tach layers", "define module boundaries", "set up interfaces", "run tach check", "check module boundaries", "tach…

Apache-2.0Auto-check passed

Install Tach

skills CLI

$ npx skills add anam-org/metaxy --skill tach -a claude-code

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

GitHub CLI

$ gh skill install anam-org/metaxy tach --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/anam-org/metaxy.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/tach .claude/skills/tach && 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 "tach" agent skill from https://github.com/anam-org/metaxy/tree/main/.claude/skills/tach into .claude/skills/tach/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tach", 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/anam-org/metaxy/tree/main/.claude/skills/tach

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 anam-org/metaxy --skill tach -a codex

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

GitHub CLI

$ gh skill install anam-org/metaxy tach --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/anam-org/metaxy.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/tach .agents/skills/tach && 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 "tach" agent skill from https://github.com/anam-org/metaxy/tree/main/.claude/skills/tach into .agents/skills/tach/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tach", 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 anam-org/metaxy --skill tach -a cursor

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

GitHub CLI

$ gh skill install anam-org/metaxy tach --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/anam-org/metaxy.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/tach .cursor/skills/tach && 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 "tach" agent skill from https://github.com/anam-org/metaxy/tree/main/.claude/skills/tach into .cursor/skills/tach/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tach", 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/anam-org/metaxy.git --path .claude/skills/tach

--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 anam-org/metaxy --skill tach -a gemini-cli

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

GitHub CLI

$ gh skill install anam-org/metaxy tach --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/anam-org/metaxy.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/tach .gemini/skills/tach && 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 "tach" agent skill from https://github.com/anam-org/metaxy/tree/main/.claude/skills/tach into .gemini/skills/tach/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tach", 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 anam-org/metaxy tach

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 anam-org/metaxy --skill tach -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/anam-org/metaxy.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/tach .github/skills/tach && 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 "tach" agent skill from https://github.com/anam-org/metaxy/tree/main/.claude/skills/tach into .github/skills/tach/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tach", 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 anam-org/metaxy --skill tach -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 anam-org/metaxy tach --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/anam-org/metaxy.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/tach .opencode/skills/tach && 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 "tach" agent skill from https://github.com/anam-org/metaxy/tree/main/.claude/skills/tach into .opencode/skills/tach/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tach", 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: tach
GitHub stars: 124
Token cost: ~1.2k tokens
SKILL.md length: 492 words
Files: 1
Skills in repo: 8
Repo updated: Sep 30, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

This skill should be used when the user asks to "add a tach module", "configure tach layers", "define module boundaries", "set up interfaces", "run tach check", "check module boundaries", "tach…

Works in 3 steps: Add the module definition to tach.toml… → Run tach sync --add to discover any… → Run tach check to verify
Asks to add a tach module
SKILL.md covers How This Project Uses Tach, Core Commands, Key Concepts and Common Tasks, plus 1 more section
Calls uv

What it does

Tach is an agent skill from anam-org/metaxy. This skill should be used when the user asks to "add a tach module", "configure tach layers", "define module boundaries", "set up interfaces", "run tach check", "check module boundaries", "tach sync", "tach show", "deprecate a dependency", "tach-ignore", "unchecked modules", "tach test", "skip tests with tach", "configure tach.toml", "source roots", "forbid circular dependencies", "enforce module boundaries", "set up architectural layers", or "tach init".

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with Python. The repository describes itself as: Pluggable metadata management framework for versioned incremental multimodal data/ML pipelines. The licence is Apache-2.0.

When your agent uses it

Asks to add a tach module
Configure tach layers
Define module boundaries
Set up interfaces

Example prompts

“add a tach module”
“configure tach layers”
“define module boundaries”
“/tach”

Requirements

Python 3

Workflow steps

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

Add the module definition to tach.toml with path, layer, and depends_on
Run tach sync --add to discover any additional dependencies
Run tach check to verify

What it can do on your machine

Read from SKILL.md and the folder at commit 8337842. 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
Shell commands in SKILL.md call:
- uv
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- docs.gauge.sh
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

Tach loads about 1.2k tokens when it runs. Until then it costs about 116 tokens; SKILL.md has 492 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~116
When it runs · the whole SKILL.md, loaded when a task matches: ~1.2k

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

The full file from anam-org/metaxy at commit 8337842, republished under its Apache-2.0 licence (© anam-org). 492 words, ~1,237 tokens.

Download SKILL.mdSave it as .claude/skills/tach/SKILL.md (or your agent's skills folder).

name: tach
description: This skill should be used when the user asks to "add a tach module", "configure tach layers", "define module boundaries", "set up interfaces", "run tach check", "check module boundaries", "tach sync", "tach show", "deprecate a dependency", "tach-ignore", "unchecked modules", "tach test", "skip tests with tach", "configure tach.toml", "source roots", "forbid circular dependencies", "enforce module boundaries", "set up architectural layers", or "tach init".

Tach

Tach enforces module boundaries in Python codebases. It verifies that imports between modules respect declared dependencies and public interfaces, with no runtime impact.

For full documentation: https://docs.gauge.sh/

How This Project Uses Tach

The project defines three architectural layers in tach.toml: cli > ext > core. Higher layers may import from lower layers without declaring dependencies. Same-layer imports require explicit depends_on declarations. Unlayered facade and primitive modules (e.g., metaxy, metaxy._decorators) sit outside the layer hierarchy.

Run uv run tach check to verify boundaries. The pre-commit hook runs this automatically on src/ changes.

Run uv run pytest --tach to skip tests unaffected by changes (uses tach's module dependency graph for impact analysis).

Core Commands

Command	Purpose
`tach init`	Guided setup: walks through `tach mod`, `tach sync`, `tach show`
`tach mod`	Interactive terminal UI to mark module boundaries
`tach sync`	Sync `tach.toml` with actual imports (`--add` to only add)
`tach check`	Report boundary/interface violations (`--exact` for unused deps)
`tach check-external`	Validate 3rd-party imports match `pyproject.toml`
`tach show`	Visualize dependency graph (`--web`, `--mermaid`, `-o`)
`tach map`	JSON dependency map between files (`--closure` for transitives)
`tach report`	Dependencies/usages of a module (`--dependencies`, `--usages`)
`tach test`	Run only tests impacted by changes
`tach install`	Install as pre-commit hook

Full command reference: https://docs.gauge.sh/usage/commands/

Key Concepts

Modules

A module is a Python package or file with dependencies configured in tach.toml. Identified by import path from the nearest source root (e.g., metaxy.config for src/metaxy/config/).

toml

[[modules]]
path = "metaxy.config"
layer = "core"
depends_on = ["metaxy._decorators", "metaxy.models"]

Special attributes:

utility: true — accessible to all modules without declaring dependency
unchecked: true — no dependency restrictions (for incremental adoption)
visibility: [] — isolate module from external imports
cannot_depend_on — forbidden dependencies (takes precedence over depends_on)

Layers

Ordered architectural tiers. Higher layers may freely import from lower layers; lower layers may never import from higher layers. Same-layer imports require explicit depends_on.

toml

layers = ["cli", "ext", "core"]

Set layers_explicit_depends_on = true to require all cross-layer dependencies be declared explicitly. Mark a layer as closed with { name = "commands", closed = true } to force higher layers through the intermediary.

Full layers documentation: https://docs.gauge.sh/usage/layers/

Show full SKILL.md (169 more words)Show less

Interfaces

Define public APIs to prevent deep coupling. Only imports matching expose patterns are allowed.

toml

[[interfaces]]
expose = ["get_data"]
from = ["core"]

Interfaces support visibility to restrict consumers and exclusive: true to override other interfaces.

Full interfaces documentation: https://docs.gauge.sh/usage/interfaces/

Deprecation

Mark dependencies as deprecated to surface usage without failing checks:

toml

depends_on = [{ path = "core", deprecated = true }]

tach-ignore

Suppress specific violations with inline comments:

python

# tach-ignore
from core.main import private_function

from core.api import priv, pub  # tach-ignore priv

Add reasons: # tach-ignore(reason here) member_name

Common Tasks

Add a New Module

Add the module definition to tach.toml with path, layer, and depends_on
Run tach sync --add to discover any additional dependencies
Run tach check to verify

Move a Module Between Layers

Update the layer field in tach.toml
Adjust depends_on based on new layer relationships
Run tach check to verify no violations

Debug Boundary Violations

Error format: file.py[L8]: Cannot import 'foo.bar'. Module 'baz' cannot depend on 'foo'.

Options:

Add the dependency to depends_on in tach.toml
Mark dependency as deprecated to track without blocking
Use # tach-ignore for exceptions
Restructure imports to go through public interfaces

Configuration Reference

Full configuration documentation: https://docs.gauge.sh/usage/configuration/

Files

Just SKILL.md in .claude/skills/tach of anam-org/metaxy.

Open the folder on GitHubat commit 8337842

Compare with similar skills

Tach 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.

Tach compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Tach this skillanam-org/metaxy	124	—	~1.2k	Automated safety check: Pass	Apache-2.0	8 days ago
MCP Server Builderanthropics/skills	180k	63 repos	~2.3k	Automated safety check: Pass	Apache-2.0	today
PDF Processinganthropics/skills	180k	48 repos	~2k	Automated safety check: Pass	Proprietary	today
NotebookLM Research AssistantPleasePrompto/notebooklm-skill	7.8k	14 repos	~2.4k	Automated safety check: Notes	MIT	29 days ago
Manim Video Productionbrowser-use/video-use	28k	6 repos	~3k	Automated safety check: Pass	MIT	today
Code Review ChecklistshareAI-lab/learn-claude-code	78k	5 repos	~1.1k	Automated safety check: Pass	MIT	11 days ago

Similar skills

MCP Server Builder
anthropics/skills
Official
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
180k GitHub starsUsed in 63 repos~2.3k tokens
Agent WorkflowsAuto-check passed
PDF Processing
anthropics/skills
Official
Handles everyday PDF jobs in Python and on the command line: extract text and tables, merge, split, rotate, watermark, fill forms, encrypt and OCR.
180k GitHub starsUsed in 48 repos~2k tokens
Documents & OfficeAuto-check passed
NotebookLM Research Assistant
PleasePrompto/notebooklm-skill
Lets Claude Code ask questions of your Google NotebookLM notebooks through browser automation and return answers grounded in your uploaded sources.
7.8k GitHub starsUsed in 14 repos~2.4k tokens
Knowledge ManagementAuto-check: notes
Manim Video Production
browser-use/video-use
Produces math and technical explainer videos with Manim Community Edition: concept animations, equation derivations, algorithm walkthroughs and data stories.
28k GitHub starsUsed in 6 repos~3k tokens
Media & CreativeAuto-check passed
Code Review Checklist
shareAI-lab/learn-claude-code
Reviews code against a five-part checklist covering security, correctness, performance, maintainability and testing, and reports findings in a fixed format.
78k GitHub starsUsed in 5 repos~1.1k tokens
DevelopmentAuto-check passed
PPT Master
hugohe3/ppt-master
Generates editable PowerPoint decks, rebuilds slides from images, fills .pptx templates and polishes existing presentations through routed workflows.
58k GitHub starsUsed in 1 repo~2.5k tokens
Documents & OfficeAuto-check passed

Questions about Tach

What does Tach do?

This skill should be used when the user asks to "add a tach module", "configure tach layers", "define module boundaries", "set up interfaces", "run tach check", "check module boundaries", "tach…. Tach is an agent skill from anam-org/metaxy.toml", "source roots", "forbid circular dependencies", "enforce module boundaries", "set up architectural layers", or "tach init".

When should I use Tach?

Tach fits situations like: asks to add a tach module; configure tach layers; define module boundaries; set up interfaces.

How do I install Tach in Claude Code?

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

How do I install Tach in Codex?

Run `npx skills add anam-org/metaxy --skill tach -a codex`. Or copy the skill folder (.claude/skills/tach in anam-org/metaxy) into .agents/skills/tach in your project. Codex loads it when a task matches its description.

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

What does Tach need to run?

Going by SKILL.md and its folder, Tach needs the command-line tools its instructions call (uv). Our summary lists: Python 3.

Does Tach access the network?

SKILL.md names 1 domain. As links in the text: docs.gauge.sh. This is read from the text; nothing was executed.

Is Tach 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 Tach use?

Tach is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Tach use?

About 1.2k tokens (SKILL.md is roughly 4.9k 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 Tach?

Skills that share tags, products or a category with Tach: 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, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Tach?

anam-org (a GitHub organization) maintains it in anam-org/metaxy, which has 124 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on September 30, 2026.

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

Install Tach

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

Tach

How This Project Uses Tach

Core Commands

Key Concepts

Modules

Layers

Interfaces

Deprecation

tach-ignore

Common Tasks

Add a New Module

Move a Module Between Layers

Debug Boundary Violations

Configuration Reference

Files

Compare with similar skills

Similar skills

More from anam-org/metaxy

Related

Questions about Tach