What is coding_skill?

A coding guide for inspecting, editing, testing, refactoring, and validating project source code inside a configured project directory.

Use it for code searches, bug fixes, refactors, file moves, syntax checks, automated tests, and validation.

It provides a repeatable process for making small, verifiable code changes when the project context is limited.

coding_skill — Skill for Claude Code and Codex by Negai-ai/AgentClaw

Install

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.

Any agent

npx skills add Negai-ai/AgentClaw --skill coding_skill

Clone the repo

git clone --depth 1 https://github.com/Negai-ai/AgentClaw

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/negai-ai/agentclaw/coding_skill/github.svg)](https://agentmods.dev/skills/negai-ai/agentclaw/coding_skill)

Your own site

<a href="https://agentmods.dev/skills/negai-ai/agentclaw/coding_skill"><img src="https://agentmods.dev/badge/skills/negai-ai/agentclaw/coding_skill/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/negai-ai/agentclaw/coding_skill"><img src="https://agentmods.dev/badge/skills/negai-ai/agentclaw/coding_skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,550 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

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	$0.00052	$0.04550
Opus 5.5	$0.00021	$0.01820
Sonnet 5.5	$0.00010	$0.00910
Haiku 4.5	$0.00005	$0.00455

Measured 2mo ago against content hash 1fa0ba3b0b57, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

coding_skill scanned grade A with 0 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agentclaw/skills/builtin_skills/coding_skill/SKILL.md · 502 lines

How it starts

The opening of the file, as written. The whole thing — 502 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Coding Skill (Primary Playbook)

This SKILL.md is the default guide for common coding tasks. Focus on reliable tool usage and verifiable code changes. Load references/* only when needed.

1) Scope and Boundary

This skill covers generic coding work: discover, read, edit, refactor, and validate code.
This skill is tool-centric. Keep guidance about product/domain-specific implementation out of the main flow.
All coding-tool paths are resolved under project_dir. Paths outside project_dir are invalid.
Use minimal edits first; escalate to broad rewrites only when partial edits are unstable.
Do not introduce hardcoded secrets, machine-specific absolute paths, or environment-specific install commands in generated code.

2) Zero-Context Execution Flow (Default)

When repository context is limited, use this fixed sequence:

search_code to locate files/snippets.
Run quick environment preflight for path/tool consistency:
- confirm project_dir-relative target paths
- avoid bare pip; prefer interpreter-scoped install commands when needed
read_code to load exact edit context.
Apply smallest safe edit (replace_in_file or update_code).
For Python edits:
- If you used write_code: syntax is already validated (pre-write check). Do NOT call syntax_check in the same tool call — the file won't exist yet when parallel tools run. Only use syntax_check separately for replace_in_file / update_code edits.
- python -m py_compile <changed_file>.py (optional, for import-level validation; on Windows you may also use py -3 -m py_compile)
If syntax fails, patch the failing region with local edits first (replace_in_file / update_code), then re-run checks.
Re-read changed region (read_code) when ambiguity/count errors occurred.
Report changed files, validations, and unresolved risks.

Prefer not to skip to later steps when an earlier step fails.

3) Tool Contract (Default)

3.1 `search_code`

Purpose: text/regex discovery in project files. Returns file:line:col: matched_text for each match.

Read the full file on GitHub · 502 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

references/agent_workflow_coding_notes.md 2.5 KB

Changes

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 · 502 lines · 52 tokens per session scan A 1fa0ba3b0b57

Subscribe to this mod's changes

coding_skill is a skill published in the GitHub repository Negai-ai/AgentClaw (315 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 52 tokens to every session and 4,550 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

coding_skill next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
coding_skillNegai-ai/AgentClaw	Skill	315	5mo ago	Apache-2.0	A	52	Claude Code, Codex
imagegenopenai/codex	Skill	134k	today	Apache-2.0	A	113	Codex
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	yesterday	MIT	A	200	Claude Code, Codex
playwright-climicrosoft/playwright	Skill	100k	yesterday	Apache-2.0	A	19	Claude Code
browser-automationopenclaw/openclaw	Skill	394k	today	MIT	A	36	Claude Code
systematic-debuggingobra/superpowers	Skill	314k	4d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	today	MIT	A	95	Claude Code