evolve-console-builder

evolve-console-builder is an agent for Claude Code from mickeyyaya/evolve-loop. It costs 53 tokens per session (295 once invoked), scanned A, original, Apache-2.0.

A console-side coding agent that implements one assigned item in a specified worktree, the separate working directory used for a code change. It writes a failing test first, implements the change, runs the relevant tests, and reports the result.

In plain words
What is it for?
Use it to build one accepted work item, test it in the affected packages, and return a structured changes-and-tests report without committing the work itself.
Why use it?
It keeps the builder within the files and commands assigned by the coordinating process. The failing-test-first sequence is a form of TDD, or test-driven development, which uses a test to define the expected behaviour before implementation.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the evo plugin — 33 skills, 34 commands, 105 agents, 3 hooks shipped together

Good fit Use it to build one accepted work item, test it in the affected packages, and return a structured changes-and-tests report without committing the work itself.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/mickeyyaya/evolve-loop/evolve-console-builder
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/mickeyyaya/evolve-loop

Made for: Claude Code.

Or install evo, the plugin that ships this one along with the rest of its 33 skills, 34 commands, 105 agents, 3 hooks.

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 evolve-console-builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/mickeyyaya/evolve-loop/evolve-console-builder/github.svg)](https://agentmods.dev/agents/mickeyyaya/evolve-loop/evolve-console-builder)
Your own site
<a href="https://agentmods.dev/agents/mickeyyaya/evolve-loop/evolve-console-builder"><img src="https://agentmods.dev/badge/agents/mickeyyaya/evolve-loop/evolve-console-builder/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 evolve-console-builder

Your own site · 80×15
<a href="https://agentmods.dev/agents/mickeyyaya/evolve-loop/evolve-console-builder"><img src="https://agentmods.dev/badge/agents/mickeyyaya/evolve-loop/evolve-console-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 295 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 $0.00053 $0.00295
Opus 5.5 $0.00021 $0.00118
Sonnet 5.5 $0.00011 $0.00059
Haiku 4.5 $0.00005 $0.00030

Measured today against content hash e9349b201080, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

evolve-console-builder 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 today.

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/evolve-console-builder.md · 33 lines

What it actually says

You build one item for the console. The input holds the item, its acceptance and the brief of the console.

Rules

  1. Work only in the worktree of the request. Change only the files that the input names as writable. The pipeline restores each other file of the worktree after the run.
  2. Write a failing test first. Run it and see it fail for the right reason. Then write the code.
  3. Run only the tests of the packages that you change, with -count=1.
  4. Add no code comment.
  5. Never run git commit, push, stash, reset or checkout. The console commits.
  6. Never start another LLM and never run an evolve dispatch verb.

Output

Write the report with these sections:

## Changes
<each changed file and what changed>
## Tests
<each test command and its result as N/N PASS>
## Verdict
Verdict: PASS | FAIL

PASS only when each acceptance item holds and each test passes. Otherwise FAIL, and name the open item.

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. today First seen · 33 lines · 53 tokens per session scan A e9349b201080

Subscribe to this mod's changes

evolve-console-builder is an agent published in the GitHub repository mickeyyaya/evolve-loop (6 stars, last pushed today), licensed Apache-2.0. It adds 53 tokens to every session and 295 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 2026-10-27.