tooling-engineer

tooling-engineer is a skill for Claude Code, Codex from belokonm/claude-supercode-skills. It costs 23 tokens per session (692 once invoked), scanned A, original, no licence file.

A guide for building developer tools such as command-line programs, IDE extensions, and local development utilities.

In plain words
What is it for?
Use it to create CLI utilities, IDE extensions, developer tooling, and local environment improvements.
Why use it?
It helps solve repetitive development tasks and improve how developers work in their local environments.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to create CLI utilities, IDE extensions, developer tooling, and local environment improvements.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/belokonm/claude-supercode-skills/tooling-engineer-skill
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 belokonm/claude-supercode-skills --skill tooling-engineer-skill
Clone the repo
git clone --depth 1 https://github.com/belokonm/claude-supercode-skills

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.

agentmods badge for tooling-engineer

README.md
[![agentmods](https://agentmods.dev/badge/skills/belokonm/claude-supercode-skills/tooling-engineer-skill/github.svg)](https://agentmods.dev/skills/belokonm/claude-supercode-skills/tooling-engineer-skill)
Your own site
<a href="https://agentmods.dev/skills/belokonm/claude-supercode-skills/tooling-engineer-skill"><img src="https://agentmods.dev/badge/skills/belokonm/claude-supercode-skills/tooling-engineer-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.

agentmods 80×15 button for tooling-engineer

Your own site · 80×15
<a href="https://agentmods.dev/skills/belokonm/claude-supercode-skills/tooling-engineer-skill"><img src="https://agentmods.dev/badge/skills/belokonm/claude-supercode-skills/tooling-engineer-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 692 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.
Origin unknown 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00023 $0.00692
Opus 5.5 $0.00009 $0.00277
Sonnet 5.5 $0.00005 $0.00138
Haiku 4.5 $0.00002 $0.00069

Measured 2mo ago against content hash e3ab884af6c0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tooling-engineer 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.

tooling-engineer-skill/SKILL.md · 91 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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.

  1. 2mo ago First seen · 91 lines · 23 tokens per session scan A e3ab884af6c0

Subscribe to this mod's changes

tooling-engineer is a skill published in the GitHub repository belokonm/claude-supercode-skills (12 stars, last pushed 9mo ago), with no licence file. It adds 23 tokens to every session and 692 once invoked, about $0.0001 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 2026-09-03.

Related

tooling-engineer compared with skills from other repositories

tooling-engineer next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
tooling-engineerbelokonm/claude-supercode-skillsSkill129mo agononeA23Claude Code, Codex
content-hash-cache-patternaffaan-m/ECCSkill298k5d agoMITA30Claude Code, Kiro
CreateCLIdanielmiessler/LifeOSSkill20kyesterdayMITA88Claude Code, Codex
segment-createJanDeDobbeleer/oh-my-poshSkill24k2d agoMITA42Claude Code, Codex
python-releaseComposioHQ/composioSkill31kyesterdayMITA53Claude Code, Codex
setup-ts-deep-modulesvinvcn/mattpocock-skills-zh-CNSkill5.6k9d agoMITA49Claude Code, Codex
frontend-ai-guideshinpr/claude-code-workflowsSkill7114d agoMITA41Claude Code