Using Agent Skills
addyosmani/agent-skills
Meta-skill for choosing which workflow skill fits the task at hand, plus always-on habits: surface assumptions, stop on confusion, push back, keep it simple and stay in scope.
Maintain AGENTS.md-based project instructions for tools that support AGENTS.md.
$ npx skills add hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins agents-md-improver --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/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/yyykf/spellbook-skills/skills/agents-md-improver .claude/skills/agents-md-improver && 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 "agents-md-improver" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/yyykf/spellbook-skills/skills/agents-md-improver into .claude/skills/agents-md-improver/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agents-md-improver", 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/hashgraph-online/awesome-codex-plugins/tree/main/plugins/yyykf/spellbook-skills/skills/agents-md-improverType 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 hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins agents-md-improver --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/yyykf/spellbook-skills/skills/agents-md-improver .agents/skills/agents-md-improver && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "agents-md-improver" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/yyykf/spellbook-skills/skills/agents-md-improver into .agents/skills/agents-md-improver/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agents-md-improver", 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 hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins agents-md-improver --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/yyykf/spellbook-skills/skills/agents-md-improver .cursor/skills/agents-md-improver && 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 "agents-md-improver" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/yyykf/spellbook-skills/skills/agents-md-improver into .cursor/skills/agents-md-improver/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agents-md-improver", 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/hashgraph-online/awesome-codex-plugins.git --path plugins/yyykf/spellbook-skills/skills/agents-md-improver--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 hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins agents-md-improver --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/yyykf/spellbook-skills/skills/agents-md-improver .gemini/skills/agents-md-improver && 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 "agents-md-improver" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/yyykf/spellbook-skills/skills/agents-md-improver into .gemini/skills/agents-md-improver/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agents-md-improver", 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 hashgraph-online/awesome-codex-plugins agents-md-improverInstalls 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 hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/yyykf/spellbook-skills/skills/agents-md-improver .github/skills/agents-md-improver && 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 "agents-md-improver" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/yyykf/spellbook-skills/skills/agents-md-improver into .github/skills/agents-md-improver/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agents-md-improver", 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 hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins agents-md-improver --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/yyykf/spellbook-skills/skills/agents-md-improver .opencode/skills/agents-md-improver && 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 "agents-md-improver" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/yyykf/spellbook-skills/skills/agents-md-improver into .opencode/skills/agents-md-improver/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agents-md-improver", 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.
agents-md-improverMaintain AGENTS.md-based project instructions for tools that support AGENTS.md.
Agents Md Improver is an agent skill from hashgraph-online/awesome-codex-plugins. Maintain AGENTS.md-based project instructions for tools that support AGENTS.md. Use for instruction audits, session learnings, AGENTS.md updates, or migrating useful CLAUDE.md rules into a shared instruction source. Not for general docs, code review, runtime debugging, or global memory unless asked.
Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/repository-audit.md` and `references/session-learning.md`).
It sits in Agent Workflows, covering Agent instruction files and Customer support. The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is Apache-2.0.
5 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit 78497e5. It shows what the files ask for, not the result of running them.
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.
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown and bash).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Agents Md Improver loads about 1.5k tokens when it runs, and up to ~2.9k if it reads all its reference files. Until then it costs about 80 tokens; SKILL.md has 664 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.
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.
The full file from hashgraph-online/awesome-codex-plugins at commit 78497e5, republished under its Apache-2.0 licence (© hashgraph-online). 664 words, ~1,548 tokens.
.claude/skills/agents-md-improver/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.Maintain concise project instructions for AGENTS.md-compatible tools such as Codex, Copilot, Cursor, and similar coding agents.
Core principle: Find the effective instruction source -> extract durable learnings -> propose compact diffs -> apply approved changes only.
Announce at start: "I'm using the agents-md-improver skill to maintain concise AGENTS.md project instructions."
AGENTS.md, nested AGENTS.md, or compatible instruction files.Find instruction files from the repository root:
find . \( -name "AGENTS.md" -o -name "CLAUDE.md" -o -name ".claude.local.md" \) 2>/dev/null | head -50Use these targeting rules:
./AGENTS.md: primary shared project instructions for AGENTS.md-compatible tools.AGENTS.md: module-specific instructions; update only when the learning applies to that subtree.AGENTS.md: if it contains only an include such as @./CLAUDE.md, read the target and treat that target as the effective source. Update the target only when the repository intentionally shares one instruction file across tools.CLAUDE.md: Claude Code-specific instructions, or a shared source when AGENTS.md intentionally points to it. Do not update it just because it exists..claude.local.md: personal Claude Code local notes. Do not create or edit it for shared AGENTS.md project memory.~/.codex/AGENTS.md: update only when the user explicitly asks for global behavior..project_context/: historical exploration, plans, and execution summaries. Use it for trace records, not agent steering instructions.If no AGENTS.md exists, propose creating the narrowest useful one, usually ./AGENTS.md.
Choose exactly one primary mode before scanning or proposing edits:
CLAUDE.md or another tool-specific instruction file into an AGENTS.md-compatible source. Reuse Session Learning Mode for extraction rules, but keep tool-only slash commands, hooks, or UI shortcuts in tool-specific files unless the user asks to make them shared.AGENTS.md is prompt context. Prefer dense, operational bullets.
Good format:
- Use `rg` for repo-wide search; fall back only if unavailable.
- Run `pnpm test -- --runInBand` for flaky integration tests in this repo.
- Keep API compatibility normalization in the service layer unless a spec explicitly changes request validation.Avoid adding:
Always show proposed changes before modifying files. Group proposals by target file.
Use this format:
### Update: ./AGENTS.md
Why: <one-line reason this helps future agent sessions>
```diff
+ <concise addition>
```If multiple files could be updated, explain the placement tradeoff:
AGENTS.md for project-wide behavior;AGENTS.md for module-local behavior;.project_context/ for historical records;CLAUDE.md only for Claude Code-specific behavior or an intentional shared source.Ask for approval before editing. If the user already explicitly said to apply changes, proceed with the smallest safe patch.
When approved:
.project_context/ as agent steering context. It is for traceability, not instructions that should load every session.CLAUDE.md for a shared AGENTS.md request when the repo does not intentionally share one source file.AGENTS.md and patching the wrapper instead of the effective source.For Repository Audit Mode, provide the quality report format from references/repository-audit.md.
For Session Learning Mode or Migration Mode, provide:
© hashgraph-online, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 2 other files (references) in plugins/yyykf/spellbook-skills/skills/agents-md-improver of hashgraph-online/awesome-codex-plugins.
Open the folder on GitHubat commit 78497e5
Agents Md Improver 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 |
|---|---|---|---|---|---|---|
| Agents Md Improver this skillhashgraph-online/awesome-codex-plugins | 1.2k | — | ~1.5k | Automated safety check: Pass | Apache-2.0 | |
| Using Agent Skillsaddyosmani/agent-skills | 103k | 4 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Claude ReflectBayramAnnakov/claude-reflect | 1.7k | 2 repos | ~627 | Automated safety check: Pass | MIT | |
| Writing For Agentsbestofjs/bestofjs | 3.1k | 19 repos | ~2.7k | Automated safety check: Pass | MIT | |
| Neat-Freak Knowledge CloseoutKKKKhazix/khazix-skills | 21k | — | ~1.9k | Automated safety check: Pass | MIT | |
| Task Observerrebelytics/one-skill-to-rule-them-all | 3.2k | 1 repos | ~12k | Automated safety check: Pass | CC-BY-4.0 |
addyosmani/agent-skills
Meta-skill for choosing which workflow skill fits the task at hand, plus always-on habits: surface assumptions, stop on confusion, push back, keep it simple and stay in scope.
BayramAnnakov/claude-reflect
Self-learning system that captures corrections during sessions and reminds users to run /reflect to update CLAUDE.md.
bestofjs/bestofjs
Writing documents for agents. An agent skill from bestofjs/bestofjs.
KKKKhazix/khazix-skills
Brings project docs, agent rule files, authorized memory and leftover workspace files back in line with what the code and runtime actually do at the end of a work session.
rebelytics/one-skill-to-rule-them-all
Monitors task execution for skill improvement opportunities.
microsoft/SkillOpt
Runs an on-demand or nightly sleep cycle that reviews past Claude Code sessions and proposes validated updates to CLAUDE.md and skills.
hashgraph-online/awesome-codex-plugins
Create original anime-style reaction stickers as looping GIFs and MP4 previews, using generated character pose sheets and timed key poses.
hashgraph-online/awesome-codex-plugins
Manage and query Calibre libraries with the calibredb CLI (local paths or Calibre Content server URLs).
hashgraph-online/awesome-codex-plugins
A skill your agent uses when adding, changing, testing, or debugging Rust HTTP APIs and services, especially when Codex needs black-box integration tests, random-port app startup, real database test…
hashgraph-online/awesome-codex-plugins
Make a studio's game look like something at build time — a cover from a real frame of the game (free), painted covers, backdrops, textures and character plates from image models through the…
hashgraph-online/awesome-codex-plugins
Balance game difficulty, resources, rewards, probability, progression, economies, and dominant strategies.
hashgraph-online/awesome-codex-plugins
Analyze nonfiction manuscripts for reader engagement signals, including heading-level word counts, slow starts, long slogs, weak takeaway titles, value pacing, beta-reader comment dropoff, and…
Categories
Maintain AGENTS.md-based project instructions for tools that support AGENTS.md. Agents Md Improver is an agent skill from hashgraph-online/awesome-codex-plugins.md.
Agents Md Improver fits situations like: instruction audits; session learnings; AGENTS.md updates; migrating useful CLAUDE.md rules into a shared instruction source.
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a claude-code`. Or copy the skill folder (plugins/yyykf/spellbook-skills/skills/agents-md-improver in hashgraph-online/awesome-codex-plugins) into .claude/skills/agents-md-improver in your project. Claude Code loads it when a task matches its description.
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a codex`. Or copy the skill folder (plugins/yyykf/spellbook-skills/skills/agents-md-improver in hashgraph-online/awesome-codex-plugins) into .agents/skills/agents-md-improver in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hashgraph-online/awesome-codex-plugins --skill agents-md-improver -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agents-md-improver, .gemini/skills/agents-md-improver, .github/skills/agents-md-improver and .opencode/skills/agents-md-improver in your project.
SKILL.md names no scripts, command-line tools or credentials: Agents Md Improver is instructions for the agent only.
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.
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.
Agents Md Improver 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.
About 1.5k tokens (SKILL.md is roughly 6.2k 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 1.3k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Agents Md Improver: Using Agent Skills (addyosmani/agent-skills, 103k stars), Claude Reflect (BayramAnnakov/claude-reflect, 1.7k stars), Writing For Agents (bestofjs/bestofjs, 3.1k stars) and Neat-Freak Knowledge Closeout (KKKKhazix/khazix-skills, 21k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,242 GitHub stars. The repository holds 686 skills in this directory. The repository was last updated on October 8, 2026.
Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.