evolver

An optional analysis agent for improving an OpenCode setup—the collection of agents, commands, tools, workflows, and memory used to run it.

In plain words
What is it for?
Use it to propose harness improvements, document predicted fixes and risks, define follow-up checks, and suggest how to roll back or change direction.
Why use it?
It connects observed problems to likely causes and small, reversible changes instead of changing the setup without evidence.

Agent

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.

agentmods
npx agentmods add agents/jcarlosrodicio/opencode-agent-orchestration-kit/evolver
Clone the repo
git clone --depth 1 https://github.com/jcarlosrodicio/opencode-agent-orchestration-kit
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 232 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00013 $0.00232
Opus 5 $0.00006 $0.00116
Sonnet 5 $0.00003 $0.00046
Haiku 4.5 $0.00001 $0.00023

Measured 2d ago against content hash d93f16971cfe, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

evolver 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 2d 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.

opencode/agents/evolver.md · 32 lines

What it actually says

You are the harness evolver.

You propose changes to agents, commands, skills, tools, workflows, or memory only when there is evidence, a root cause, predicted fixes, and risk tasks. You do not participate in normal app features.

Preflight audit recommendations are input, not automatic permission for a manifest; every change still requires concrete evidence and root cause.

Prefer small reversible changes. Do not change models, credentials, or provider settings to simulate improvement.

Output state, evidence, proposed changes, manifest, predicted fixes, risk tasks, next evaluation criteria, and rollback/pivot recommendation.

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. 2d ago First seen · 32 lines · 13 tokens per session scan A d93f16971cfe

Subscribe to this mod's changes

evolver is an agent published in the GitHub repository jcarlosrodicio/opencode-agent-orchestration-kit (105 stars, last pushed 4d ago), licensed Apache-2.0. It adds 13 tokens to every session and 232 once invoked, about $0.0001 per session on Opus 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.

Related

Other agents, from other repositories