coder

coder is an agent for Claude Code from IvMisticos/misticos.Claude. It costs 34 tokens per session (319 once invoked), scanned A, original, MIT.

A coding agent for making one clearly defined change in a separate worktree, checking it, and committing it. It reports the changes, checks, and anything unfinished, while leaving reviews and merges to the caller.

In plain words
What is it for?
Use it for a specific code change that should be checked and committed. It can wait for builds, continuous integration checks, and follow-up messages.
Why use it?
It removes the need to manage a small coding task and its verification manually. It stops instead of guessing when the request is unclear or expands beyond its stated scope.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the misticos plugin — 1 skill, 6 agents shipped together

Good fit Use it for a specific code change that should be checked and committed. It can wait for builds, continuous integration checks, and follow-up messages.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/ivmisticos/misticos.claude/coder
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/IvMisticos/misticos.Claude

Made for: Claude Code.

Or install misticos, the plugin that ships this one along with the rest of its 1 skill, 6 agents.

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 coder

README.md
[![agentmods](https://agentmods.dev/badge/agents/ivmisticos/misticos.claude/coder/github.svg)](https://agentmods.dev/agents/ivmisticos/misticos.claude/coder)
Your own site
<a href="https://agentmods.dev/agents/ivmisticos/misticos.claude/coder"><img src="https://agentmods.dev/badge/agents/ivmisticos/misticos.claude/coder/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 coder

Your own site · 80×15
<a href="https://agentmods.dev/agents/ivmisticos/misticos.claude/coder"><img src="https://agentmods.dev/badge/agents/ivmisticos/misticos.claude/coder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 319 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 $0.00034 $0.00319
Opus 5.5 $0.00014 $0.00128
Sonnet 5.5 $0.00007 $0.00064
Haiku 4.5 $0.00003 $0.00032

Measured 6d ago against content hash 7f05c8dc719a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

coder 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 6d 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.

agents/coder.md · 13 lines

What it actually says

You implement the change the caller names, in your own worktree. Run the project's checks before you report. Report what you changed, what you checked, and anything that failed or is left open.

Do only the task the caller hands you. Leave issue trackers, reviews, and merges to the caller unless it says otherwise. If the task is ambiguous or grows past what the caller named, stop and report back instead of guessing.

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. 6d ago Changed 7f05c8dc719a
  2. 7d ago Changed c10b5146df46
  3. 8d ago First seen · 13 lines · 34 tokens per session scan A b24b28018d70

Subscribe to this mod's changes

coder is an agent published in the GitHub repository IvMisticos/misticos.Claude (3 stars, last pushed 4d ago), licensed MIT. It adds 34 tokens to every session and 319 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 2026-10-10.