How popular is 9arm-skills on GitHub?

thananon/9arm-skills has 3,205 stars and 424 forks on GitHub, and gained 10 stars in the last 7 days.

thananon/9arm-skillsPublic

AI summary: A structured collection of custom agent skills specifically designed to extend the Claude Code CLI environment.

Star on GitHub

Stars: 3.2K; +2 today
Forks: 424
Watchers: 38
Open issues: 0
Open PRs: 4
Contributors: ~2
Commits: 4
Branches: 1

ShellNo licenseCreated May 20, 2026Last push 3mo ago+10 stars this week+40 this month

Quick answers

What is 9arm-skills?: A structured collection of custom agent skills specifically designed to extend the Claude Code CLI environment.
What does 9arm-skills do?: This repository houses a curated collection of specialized skills designed to extend the default capabilities of the Claude Code CLI agent. These skills function as modular plugins that empower the agent to perform specific engineering, productivity, and local system integration tasks. The framework includes a structured bucket system for organizing skills by category, such as engineering and productivity, and provides standard installation scripts. By integrating these custom capabilities, developers can automate highly specific, repetitive workflows and enforce structured methodologies, like a rigid debugging mantra, directly within their local development environment.
Who is 9arm-skills for?: Developers using Claude Code who want to extend its capabilities by building, organizing, and integrating custom, task-specific tools and workflows.
How do I get started with 9arm-skills?: npx skills add thananon/9arm-skills
How popular is 9arm-skills on GitHub?: thananon/9arm-skills has 3,205 stars and 424 forks on GitHub, and gained 10 stars in the last 7 days.

Star history

since Jul 29, 2026

3.2K stars as of Oct 3, 2026. Measured daily since Jul 29, 2026; GitHub no longer exposes earlier star timestamps.

Contribution activity

commits per day, last 52 weeks

4 commits in the last yearLessMore

What 9arm-skills does

This repository houses a curated collection of specialized skills designed to extend the default capabilities of the Claude Code CLI agent. These skills function as modular plugins that empower the agent to perform specific engineering, productivity, and local system integration tasks. The framework includes a structured bucket system for organizing skills by category, such as engineering and productivity, and provides standard installation scripts. By integrating these custom capabilities, developers can automate highly specific, repetitive workflows and enforce structured methodologies, like a rigid debugging mantra, directly within their local development environment.

Developers using Claude Code who want to extend its capabilities by building, organizing, and integrating custom, task-specific tools and workflows.

Categorized skill buckets: Organizes tools logically into dedicated directories like engineering, productivity, and personal workflows.
Debugging discipline integration: Enforces a structured, multi-step debugging methodology before allowing agents to apply any code fixes.
Post-mortem generation: Requires agents to draft canonical engineering records of fixed bugs, detailing root causes and validation steps.
Local context access: Enables custom skills to securely process and interact with local files without exposing broader system access.
Standardized deployment: Offers simple CLI commands and bash scripts for linking and activating custom skills across different agents.

Where teams use it

Automated deployment workflows

A developer creates a skill that allows Claude Code to automatically trigger a staging deployment after finishing a feature.

Custom code linting

An engineer builds a skill that runs an in-house linter and feeds the structured results back to the agent for fixing.

Structured debugging enforcement

A team enforces the use of the debug-mantra skill to ensure the agent traces the fail path before guessing a fix.

Ticket status automation

A user adds a skill to interact with a project management tool, letting the agent update ticket statuses automatically.

Getting started: npx skills add thananon/9arm-skills

README

main branch

9arm-skills

Agent skills loaded by Claude Code.

Layout

Skills live under skills/, grouped into buckets:

engineering/ — daily code work
productivity/ — daily non-code workflow tools
misc/ — kept around but rarely used
personal/ — tied to my own setup, not promoted
in-progress/ — drafts not yet ready to ship
deprecated/ — no longer used

Each skill is its own directory containing a SKILL.md (with YAML frontmatter — name and description) and any bundled scripts or reference files.

Install

With `npx skills` (Recommended - works for every agent)

npx skills add thananon/9arm-skills

Alternative - Bash script

For my own dev loop — symlink every shippable skill into ~/.claude/skills/:

./scripts/link-skills.sh

List every SKILL.md in the repo:

./scripts/list-skills.sh

Reference

Engineering

debug-mantra — Four-mantra debugging discipline: reproduce → trace the fail path → falsify the hypothesis → cross-reference every breadcrumb. Recites verbatim at session start, then applies in order before any fix.
post-mortem — Write the canonical engineering record of a fixed bug — root cause, mechanism, fix, validation, how it slipped through. Engineer-audience; refuses to draft without a reliable repro, known cause, and validated fix.
scrutinize — Outsider-perspective end-to-end review of a plan, PR, or code change. Questions intent (is there a simpler way?), traces the actual code path, and verifies the change does what it claims. Output is concise, actionable, with rationale.
qwen-agent — Delegate menial, well-scoped coding tasks to a cheap Qwen-backed subagent via the claude-9arm command. Use for bulk renames, formatting, boilerplate, grep-style summarization, scaffolding, and build/test reporting.

Productivity

management-talk — Rewrite engineer-to-engineer content for engineering-org leadership and shape it for the channel it's going to (JIRA, Slack, async standup, email, meeting talking-points).
qwenchance — Keeps a long Claude Code task on-track — breaks loops, bounds internal reasoning, watches the context budget, and triggers a clean handoff before the window fills.

Misc

(none yet)

View on GitHub

Recent activity

commits and pull requests

A
Add qwen-agent and qwenchance skills imported from m1.home
Arm Patinyasakdikul committed a1fc303 · 3mo ago
docs(readme): add shields, header, and reference listsOpen
#7 by boomNDS · updated 4mo ago
Recommend `npx skills add` installationMerged
#6 by narze · updated 4mo ago
Update README with installation instructions (#6)
narze committed 167c834 · 4mo ago
feat: add OpenCode plugin supportOpen
#5 by xkritti · updated 4mo ago
Codex/codex plugin metadataClosed
#4 by faisol-chehumar · updated 4mo ago
Add Claude Code marketplace supportOpen
#3 by back1ply · updated 4mo ago
Add usage instructions to READMEOpen
#1 by tholapz · updated 4mo ago
A
Add debug-mantra skill; restore cross-references in post-mortem
Arm Patinyasakdikul committed d714cb8 · 4mo ago
A
Initial commit: post-mortem, scrutinize, management-talk skills
Arm Patinyasakdikul committed 1b222f2 · 4mo ago

Code frequency

additions and deletions

+777 lines added, -3 removed over the last year.

Commits per week

last 52 weeks

4 commits in the last 52 weeks.

When work happens

weekday and hour

Commit volume by weekday and hour (UTC). Larger dots mean more commits.

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May 20, 2026	daily	#11	+60

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