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Agent skill

Nanoclaw Repl

by affaan-m in affaan-m/ECC

Operate and extend NanoClaw, ECC's zero-dependency session-aware REPL, with persistent markdown-backed sessions and slash commands for model switching, skill loading, session branching…

MITAuto-check passedAgent Workflows

Install Nanoclaw Repl

skills CLI
$ npx skills add affaan-m/ECC --skill nanoclaw-repl -a claude-code

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

GitHub CLI
$ gh skill install affaan-m/ECC nanoclaw-repl --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/affaan-m/ECC.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/nanoclaw-repl .claude/skills/nanoclaw-repl && 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/

Facts

Skill name
nanoclaw-repl
GitHub stars
277k
Used in
4 other repos
Token cost
~286 tokens
SKILL.md length
82 words
Files
1
Skills in repo
683
Repo updated
First seen
Licence
MIT

At a glance

Operate and extend NanoClaw, ECC's zero-dependency session-aware REPL, with persistent markdown-backed sessions and slash commands for model switching, skill loading, session branching…

  • Works in 4 steps: Keep sessions task-focused. → Branch before high-risk changes. → Compact after major milestones. → …
  • Extending scripts/claw.js
  • SKILL.md covers Capabilities, Operating Guidance and Extension Rules
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Nanoclaw Repl is an agent skill from affaan-m/ECC. Operate and extend NanoClaw, ECC's zero-dependency session-aware REPL, with persistent markdown-backed sessions and slash commands for model switching, skill loading, session branching, cross-session search, history compaction, and export. Use when running or extending scripts/claw.js, or when resuming, branching, compacting, searching, or exporting a NanoClaw session.

Its SKILL.md is about 290 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 Session handoff and Hooks and plugins. The repository describes itself as: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. The licence is MIT.

When your agent uses it

  • Extending scripts/claw.js
  • Exporting a NanoClaw session

Example prompts

  • “/nanoclaw-repl”

Workflow steps

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

  1. Keep sessions task-focused.
  2. Branch before high-risk changes.
  3. Compact after major milestones.
  4. Export before sharing or archival.

What it can do on your machine

Read from SKILL.md and the folder at commit 2d515e4. 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

Nanoclaw Repl loads about 286 tokens when it runs. Until then it costs about 96 tokens; SKILL.md has 82 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~96
When it runs · the whole SKILL.md, loaded when a task matches
~286

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 affaan-m/ECC at commit 2d515e4, republished under its MIT licence (© affaan-m). 82 words, ~286 tokens.

Download SKILL.mdSave it as .claude/skills/nanoclaw-repl/SKILL.md (or your agent's skills folder).
name
nanoclaw-repl
description
Operate and extend NanoClaw, ECC's zero-dependency session-aware REPL, with persistent markdown-backed sessions and slash commands for model switching, skill loading, session branching, cross-session search, history compaction, and export. Use when running or extending scripts/claw.js, or when resuming, branching, compacting, searching, or exporting a NanoClaw session.
metadata.origin
ECC

NanoClaw REPL

Use this skill when running or extending scripts/claw.js.

Capabilities

  • persistent markdown-backed sessions
  • model switching with /model
  • dynamic skill loading with /load
  • session branching with /branch
  • cross-session search with /search
  • history compaction with /compact
  • export to md/json/txt with /export
  • session metrics with /metrics

Operating Guidance

  1. Keep sessions task-focused.
  2. Branch before high-risk changes.
  3. Compact after major milestones.
  4. Export before sharing or archival.

Extension Rules

  • keep zero external runtime dependencies
  • preserve markdown-as-database compatibility
  • keep command handlers deterministic and local

© affaan-m, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/nanoclaw-repl of affaan-m/ECC.

Open the folder on GitHubat commit 2d515e4

Used in 4 other repositories

We found 9 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 4 other GitHub owners. This page covers the copy in affaan-m/ECC, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Nanoclaw Repl 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.

Nanoclaw Repl compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Nanoclaw Repl this skillaffaan-m/ECC277k4 repos~286Automated safety check: PassMIT
Agentmemory Capture Hooksrohitg00/agentmemory29k—~444Automated safety check: PassApache-2.0
Hook Development for Claude Code Pluginsanthropics/claude-plugins-official38k10 repos~4.1kAutomated safety check: NotesApache-2.0
Claude Code Agent Developmentanthropics/claude-plugins-official38k7 repos~2.8kAutomated safety check: PassApache-2.0
Claude Code Skill Developer Guidediet103/claude-code-infrastructure-showcase10k11 repos~3.5kAutomated safety check: PassMIT
Plugin Settings Patternanthropics/claude-plugins-official38k7 repos~3kAutomated safety check: PassApache-2.0

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Categories

Questions about Nanoclaw Repl

What does Nanoclaw Repl do?

Operate and extend NanoClaw, ECC's zero-dependency session-aware REPL, with persistent markdown-backed sessions and slash commands for model switching, skill loading, session branching…. Nanoclaw Repl is an agent skill from affaan-m/ECC. Operate and extend NanoClaw, ECC's zero-dependency session-aware REPL, with persistent markdown-backed sessions and slash commands for model switching, skill loading, session branching, cross-session search, history compaction, and export.

When should I use Nanoclaw Repl?

Nanoclaw Repl fits situations like: extending scripts/claw.js; exporting a NanoClaw session.

How do I install Nanoclaw Repl in Claude Code?

Run `npx skills add affaan-m/ECC --skill nanoclaw-repl -a claude-code`. Or copy the skill folder (skills/nanoclaw-repl in affaan-m/ECC) into .claude/skills/nanoclaw-repl in your project. Claude Code loads it when a task matches its description.

How do I install Nanoclaw Repl in Codex?

Run `npx skills add affaan-m/ECC --skill nanoclaw-repl -a codex`. Or copy the skill folder (skills/nanoclaw-repl in affaan-m/ECC) into .agents/skills/nanoclaw-repl in your project. Codex loads it when a task matches its description.

Can I use Nanoclaw Repl 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 affaan-m/ECC --skill nanoclaw-repl -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nanoclaw-repl, .gemini/skills/nanoclaw-repl, .github/skills/nanoclaw-repl and .opencode/skills/nanoclaw-repl in your project.

What does Nanoclaw Repl need to run?

SKILL.md names no scripts, command-line tools or credentials: Nanoclaw Repl is instructions for the agent only.

Does Nanoclaw Repl 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 Nanoclaw Repl 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 Nanoclaw Repl use?

Nanoclaw Repl is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Nanoclaw Repl use?

About 286 tokens (SKILL.md is roughly 1.1k 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 Nanoclaw Repl?

Skills that share tags, products or a category with Nanoclaw Repl: Agentmemory Capture Hooks (rohitg00/agentmemory, 29k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Claude Code Agent Development (anthropics/claude-plugins-official, 38k stars) and Claude Code Skill Developer Guide (diet103/claude-code-infrastructure-showcase, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Nanoclaw Repl?

affaan-m (a GitHub user) maintains it in affaan-m/ECC, which has 276,673 GitHub stars. The repository holds 683 skills in this directory. The repository was last updated on October 11, 2026.

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