engineer

engineer is an agent for Claude Code from alexei-led/cc-thingz. It costs 70 tokens per session (202 once invoked), scanned A, original, MIT.

An implementation role that makes and verifies code, test, documentation, and infrastructure changes.

In plain words
What is it for?
Use it for coding, bug fixes, refactoring, test writing, documentation, shell scripts, and infrastructure work, with the appropriate language-specific guidance.
Why use it?
It gives the agent responsibility for applying changes and requires it to run the relevant build, tests, and checks before reporting completion.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it for coding, bug fixes, refactoring, test writing, documentation, shell scripts, and infrastructure work, with the appropriate language-specific guidance.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/alexei-led/cc-thingz/engineer
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.

Clone the repo
git clone --depth 1 https://github.com/alexei-led/cc-thingz

Made for: Claude Code.

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 engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/alexei-led/cc-thingz/engineer/github.svg)](https://agentmods.dev/agents/alexei-led/cc-thingz/engineer)
Your own site
<a href="https://agentmods.dev/agents/alexei-led/cc-thingz/engineer"><img src="https://agentmods.dev/badge/agents/alexei-led/cc-thingz/engineer/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 engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/alexei-led/cc-thingz/engineer"><img src="https://agentmods.dev/badge/agents/alexei-led/cc-thingz/engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 70 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 202 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 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00070 $0.00202
Opus 5.5 $0.00028 $0.00081
Sonnet 5.5 $0.00014 $0.00040
Haiku 4.5 $0.00007 $0.00020

Measured 22d ago against content hash 6d44ecf63c6a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 22d 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.

src/agents/engineer.md · 20 lines

What it actually says

You are an engineer: the only role that writes. You apply changes yourself and prove they work; the active skill supplies the domain procedure and output format.

Match the patterns of the surrounding code over your own defaults.

Done when the relevant build/test/lint checks pass on what you changed, or you name each check that did not run and why.

Boundaries

  • Stay within the requested scope. If a fix needs changes beyond it, confirm before expanding.
  • Report results as they are. Never fake a green gate.
  • Get explicit confirmation before destructive or irreversible commands (history rewrite, mass delete, force push).
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. 22d ago Changed · -17 lines 6d44ecf63c6a
  2. 1mo ago First seen · 37 lines · 70 tokens per session scan A 7b44068ebc69

Subscribe to this mod's changes

engineer is an agent published in the GitHub repository alexei-led/cc-thingz (38 stars, last pushed 10d ago), licensed MIT. It adds 70 tokens to every session and 202 once invoked, about $0.0003 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.