Agents Best Practices
DenisSergeevitch/agents-best-practices
A skill your agent uses when designing, generating an MVP blueprint for, auditing, troubleshooting, refactoring, or explaining an agentic harness for any domain.
Design, evaluate, and improve agentic harnesses — the orchestration layer around LLM-powered tools, agents, assistants, copilots, workflow runtimes, and AI-driven product features.
Install N Agentic Harnesses Anthropic
$ npx skills add NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install NateBJones-Projects/OB1 n-agentic-harnesses-anthropic --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/NateBJones-Projects/OB1.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/n-agentic-harnesses/variants/anthropic .claude/skills/n-agentic-harnesses-anthropic && 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 "n-agentic-harnesses-anthropic" agent skill from https://github.com/NateBJones-Projects/OB1/tree/main/skills/n-agentic-harnesses/variants/anthropic into .claude/skills/n-agentic-harnesses-anthropic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "n-agentic-harnesses-anthropic", 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/NateBJones-Projects/OB1/tree/main/skills/n-agentic-harnesses/variants/anthropicType 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 NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install NateBJones-Projects/OB1 n-agentic-harnesses-anthropic --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NateBJones-Projects/OB1.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/n-agentic-harnesses/variants/anthropic .agents/skills/n-agentic-harnesses-anthropic && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "n-agentic-harnesses-anthropic" agent skill from https://github.com/NateBJones-Projects/OB1/tree/main/skills/n-agentic-harnesses/variants/anthropic into .agents/skills/n-agentic-harnesses-anthropic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "n-agentic-harnesses-anthropic", 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 NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install NateBJones-Projects/OB1 n-agentic-harnesses-anthropic --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NateBJones-Projects/OB1.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/n-agentic-harnesses/variants/anthropic .cursor/skills/n-agentic-harnesses-anthropic && 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 "n-agentic-harnesses-anthropic" agent skill from https://github.com/NateBJones-Projects/OB1/tree/main/skills/n-agentic-harnesses/variants/anthropic into .cursor/skills/n-agentic-harnesses-anthropic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "n-agentic-harnesses-anthropic", 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/NateBJones-Projects/OB1.git --path skills/n-agentic-harnesses/variants/anthropic--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 NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install NateBJones-Projects/OB1 n-agentic-harnesses-anthropic --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NateBJones-Projects/OB1.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/n-agentic-harnesses/variants/anthropic .gemini/skills/n-agentic-harnesses-anthropic && 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 "n-agentic-harnesses-anthropic" agent skill from https://github.com/NateBJones-Projects/OB1/tree/main/skills/n-agentic-harnesses/variants/anthropic into .gemini/skills/n-agentic-harnesses-anthropic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "n-agentic-harnesses-anthropic", 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 NateBJones-Projects/OB1 n-agentic-harnesses-anthropicInstalls 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 NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/NateBJones-Projects/OB1.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/n-agentic-harnesses/variants/anthropic .github/skills/n-agentic-harnesses-anthropic && 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 "n-agentic-harnesses-anthropic" agent skill from https://github.com/NateBJones-Projects/OB1/tree/main/skills/n-agentic-harnesses/variants/anthropic into .github/skills/n-agentic-harnesses-anthropic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "n-agentic-harnesses-anthropic", 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 NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install NateBJones-Projects/OB1 n-agentic-harnesses-anthropic --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NateBJones-Projects/OB1.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/n-agentic-harnesses/variants/anthropic .opencode/skills/n-agentic-harnesses-anthropic && 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 "n-agentic-harnesses-anthropic" agent skill from https://github.com/NateBJones-Projects/OB1/tree/main/skills/n-agentic-harnesses/variants/anthropic into .opencode/skills/n-agentic-harnesses-anthropic/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "n-agentic-harnesses-anthropic", 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
n-agentic-harnesses-anthropic- GitHub stars
- 4.7k
- Token cost
- ~1.8k tokens
- SKILL.md length
- 746 words
- Files
- 1
- Skills in repo
- 24
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Design, evaluate, and improve agentic harnesses — the orchestration layer around LLM-powered tools, agents, assistants, copilots, workflow runtimes, and AI-driven product features.
- Works in 4 steps: Gather Context → Classify The Request → Classify The Product Shape → …
- The user mentions building an agentic system
- SKILL.md covers Step 0: Gather Context, Step 1: Classify The Request, Step 2: Classify The Product… and Step 3: Read The Smallest…, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
N Agentic Harnesses Anthropic is an agent skill from NateBJones-Projects/OB1. Design, evaluate, and improve agentic harnesses — the orchestration layer around LLM-powered tools, agents, assistants, copilots, workflow runtimes, and AI-driven product features. Use this skill whenever the user mentions building an agentic system, structuring tool use, adding permissions or approval gates, designing multi-step AI workflows, managing context windows or memory, making agents durable or resumable, evaluating or pressure-testing an existing harness, planning phased implementation for an AI…
Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows, covering Context engineering and Observability. The repository describes itself as: Open Brain — The infrastructure layer for your thinking. One database, one AI gateway, one chat channel — any AI plugs in. No middleware, no SaaS.
When your agent uses it
- The user mentions building an agentic system
- Structuring tool use
- Adding permissions
- Designing multi-step AI workflows
Example prompts
- “harness.”
- “/n-agentic-harnesses-anthropic”
Workflow steps
4 steps, taken from the step headings in SKILL.md.
- Gather Context
- Classify The Request
- Classify The Product Shape
- Read The Smallest Useful Reference Set
What it can do on your machine
Read from SKILL.md and the folder at commit 238df6c. 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
No scripts in the folder and no shell commands in SKILL.md.
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
N Agentic Harnesses Anthropic loads about 1.8k tokens when it runs. Until then it costs about 233 tokens; SKILL.md has 746 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.
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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 746 words (~1,805 tokens).
“Use this skill as a router for designing, building, and evaluating agentic harnesses.”
- name
- n-agentic-harnesses-anthropic
Files
Just SKILL.md in skills/n-agentic-harnesses/variants/anthropic of NateBJones-Projects/OB1.
Open the folder on GitHubat commit 238df6c
Compare with similar skills
N Agentic Harnesses Anthropic 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 |
|---|---|---|---|---|---|---|
| N Agentic Harnesses Anthropic this skillNateBJones-Projects/OB1 | 4.7k | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Agents Best PracticesDenisSergeevitch/agents-best-practices | 2.4k | — | ~7.4k | Automated safety check: Pass | MIT | |
| Context Mode Output Sandboxmksglu/context-mode | 26k | — | ~4.1k | Automated safety check: Pass | Custom licence | |
| Memori Long-Term MemoryMemoriLabs/Memori | 17k | — | ~2k | Automated safety check: Notes | Custom licence | |
| Picoclaw Skill Creatorsipeed/picoclaw | 30k | — | ~4.4k | Automated safety check: Pass | MIT | |
| Context Mode for Antigravity CLImksglu/context-mode | 26k | — | ~850 | Automated safety check: Pass | Custom licence |
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mksglu/context-mode
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MemoriLabs/Memori
Connects Claude Code to Memori Cloud for long-term memory, recalling stored context before substantive replies and saving new context afterward.
Picoclaw Skill Creator
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Guidance for creating, updating and reviewing Picoclaw skills, from the SKILL.md structure to organizing bundled scripts, references and assets.
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Routing rules for using context-mode MCP tools in Antigravity CLI: sandboxed code runs, file analysis, indexed search and web fetches that keep large output out of the conversation.
ccc Semantic Code Search
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Semantic code search and index management with the ccc CLI: the agent initializes, indexes and queries the project by concept, filtering by language or path.
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Related
Categories
Questions about N Agentic Harnesses Anthropic
What does N Agentic Harnesses Anthropic do?
Design, evaluate, and improve agentic harnesses — the orchestration layer around LLM-powered tools, agents, assistants, copilots, workflow runtimes, and AI-driven product features. N Agentic Harnesses Anthropic is an agent skill from NateBJones-Projects/OB1. Design, evaluate, and improve agentic harnesses — the orchestration layer around LLM-powered tools, agents, assistants, copilots, workflow runtimes, and AI-driven product features.
When should I use N Agentic Harnesses Anthropic?
N Agentic Harnesses Anthropic fits situations like: the user mentions building an agentic system; structuring tool use; adding permissions; designing multi-step AI workflows.
How do I install N Agentic Harnesses Anthropic in Claude Code?
Run `npx skills add NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a claude-code`. Or copy the skill folder (skills/n-agentic-harnesses/variants/anthropic in NateBJones-Projects/OB1) into .claude/skills/n-agentic-harnesses-anthropic in your project. Claude Code loads it when a task matches its description.
How do I install N Agentic Harnesses Anthropic in Codex?
Run `npx skills add NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a codex`. Or copy the skill folder (skills/n-agentic-harnesses/variants/anthropic in NateBJones-Projects/OB1) into .agents/skills/n-agentic-harnesses-anthropic in your project. Codex loads it when a task matches its description.
Can I use N Agentic Harnesses Anthropic 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 NateBJones-Projects/OB1 --skill n-agentic-harnesses-anthropic -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/n-agentic-harnesses-anthropic, .gemini/skills/n-agentic-harnesses-anthropic, .github/skills/n-agentic-harnesses-anthropic and .opencode/skills/n-agentic-harnesses-anthropic in your project.
What does N Agentic Harnesses Anthropic need to run?
SKILL.md names no scripts, command-line tools or credentials: N Agentic Harnesses Anthropic is instructions for the agent only.
Does N Agentic Harnesses Anthropic 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 N Agentic Harnesses Anthropic 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 N Agentic Harnesses Anthropic use?
N Agentic Harnesses Anthropic has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does N Agentic Harnesses Anthropic use?
About 1.8k tokens (SKILL.md is roughly 7.2k 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 N Agentic Harnesses Anthropic?
Skills that share tags, products or a category with N Agentic Harnesses Anthropic: Agents Best Practices (DenisSergeevitch/agents-best-practices, 2.4k stars), Context Mode Output Sandbox (mksglu/context-mode, 26k stars), Memori Long-Term Memory (MemoriLabs/Memori, 17k stars) and Picoclaw Skill Creator (sipeed/picoclaw, 30k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains N Agentic Harnesses Anthropic?
NateBJones-Projects (a GitHub organization) maintains it in NateBJones-Projects/OB1, which has 4,710 GitHub stars. The repository holds 24 skills in this directory. The repository was last updated on October 9, 2026.
Source: NateBJones-Projects/OB1 on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.