Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add umutbozdag/agent-skills-manager --skill manage-skillsgit clone --depth 1 https://github.com/umutbozdag/agent-skills-managerWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/umutbozdag/agent-skills-manager/manage-skills)<a href="https://agentmods.dev/skills/umutbozdag/agent-skills-manager/manage-skills"><img src="https://agentmods.dev/badge/skills/umutbozdag/agent-skills-manager/manage-skills/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/umutbozdag/agent-skills-manager/manage-skills"><img src="https://agentmods.dev/badge/skills/umutbozdag/agent-skills-manager/manage-skills.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00057 | $0.01707 |
| Opus 5.5 | $0.00023 | $0.00683 |
| Sonnet 5.5 | $0.00011 | $0.00341 |
| Haiku 4.5 | $0.00006 | $0.00171 |
Grade D, and why
manage-skills scanned grade D with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
ls ~/.claude/skills/ Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf ~/.cursor/skills/my-skill How it starts
The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Manage AI Agent Skills
You can manage skills and rules for all major AI coding tools directly from the terminal. This skill teaches you the directory layout, file format, and operations for each tool.
Supported Tools & Paths
Directory-based tools (multiple skills)
Each skill lives in its own subdirectory with a SKILL.md file containing YAML frontmatter.
| Tool | Global Path | Project Path |
|---|---|---|
| Agents | ~/.agents/skills/<name>/SKILL.md |
.agents/skills/<name>/SKILL.md |
| Cursor | ~/.cursor/skills/<name>/SKILL.md |
.cursor/skills/<name>/SKILL.md |
| Claude | ~/.claude/skills/<name>/SKILL.md |
.claude/skills/<name>/SKILL.md |
| Windsurf | ~/.windsurf/rules/<name>/<name>.md |
.windsurf/rules/<name>/<name>.md |
| Cline | ~/.cline/rules/<name>/<name>.md |
.cline/rules/<name>/<name>.md |
| Continue | ~/.continue/rules/<name>/<name>.md |
.continue/rules/<name>/<name>.md |
| Roo Code | ~/.roo/rules/<name>/<name>.md |
.roo/rules/<name>/<name>.md |
Single-file tools (one config file)
| Tool | Global Path | Project Path |
|---|---|---|
| Copilot | ~/.github/copilot-instructions.md |
.github/copilot-instructions.md |
| Codex | ~/.codex/AGENTS.md |
.codex/AGENTS.md |
| Aider | ~/.aider.conf.yml |
.aider.conf.yml |
| Augment | ~/augment-guidelines.md |
augment-guidelines.md |
Cursor plugins (read-only)
Plugin skills are cached at ~/.cursor/plugins/cache/<org>/<plugin>/<version>/skills/<name>/SKILL.md. These are managed by Cursor and should not be edited directly.
Skill File Format
For directory-based tools (Agents, Cursor, Claude), skills use YAML frontmatter:
---
name: skill-name
description: Brief description of what this skill does
---
# Skill Name
Skill instructions go here. The AI agent reads this content
when the skill is activated.
For Windsurf, Cline, Continue, and Roo Code, skills are plain .md files (frontmatter optional).
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 188 lines · 57 tokens per session scan D ca3408223873
manage-skills is a skill published in the GitHub repository umutbozdag/agent-skills-manager (43 stars, last pushed 7mo ago), licensed MIT. It adds 57 tokens to every session and 1,707 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it D with 2 findings (enumerates other installed skills, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
manage-skills compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| manage-skillsumutbozdag/agent-skills-manager | Skill | 43 | 7mo ago | MIT | D | 57 | Claude Code, Codex |
| imagegenopenai/codex | Skill | 133k | yesterday | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 99k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 313k | 3d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |
| next-partial-prefetching-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 103 | Claude Code |