evolve

A command that activates an agent to improve written prompts using research, measurements, and newer prompting techniques.

In plain words
What is it for?
Use it to review and improve prompts based on research, performance metrics, and updated methods.
Why use it?
It helps refine prompts when the first version does not produce consistent or useful results.

Command

Part of the prompt-library plugin — 1 skill, 10 commands, 4 agents shipped together

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 commands/frankxai/claude-codex-gemini-opencode-settings/evolve
Clone the repo
git clone --depth 1 https://github.com/frankxai/claude-codex-gemini-opencode-settings

Or install prompt-library, the plugin that ships this one along with the rest of its 1 skill, 10 commands, 4 agents.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,062 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
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 $0.00000 $0.02062
Opus 5 $0.00000 $0.01031
Sonnet 5 $0.00000 $0.00412
Haiku 4.5 $0.00000 $0.00206

Measured 3d ago against content hash 9d01fa6ea968, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

evolve scanned grade B with 1 finding 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 3d 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.

Asks the agent to reveal its instructionsmediumSystem prompt leakage

Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.

- `--diff` - Show prompt diff
claude/plugins/prompt-library/commands/evolve.md · 359 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. 3d ago First seen · 359 lines · 0 tokens per session scan B 9d01fa6ea968

Subscribe to this mod's changes

evolve is a command published in the GitHub repository frankxai/claude-codex-gemini-opencode-settings (2 stars, last pushed 4mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 2,062 tokens. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.