tool-operator

tool-operator is a skill for Codex from sdfdu/evopilot. It costs 26 tokens per session (183 once invoked), scanned A, original, MIT.

A guide for coordinating files, terminals, browsers, and connected applications while checking for human approval before risky actions. It covers actions such as deleting data, publishing content, accessing credentials, and changing system settings.

In plain words
What is it for?
Running local tasks, handling files and tools, reviewing uncertain actions, and recording limited operational outcomes without storing secrets.
Why use it?
It helps an agent choose safe, limited actions and prevents consequential changes from happening without immediate approval.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Running local tasks, handling files and tools, reviewing uncertain actions, and recording limited operational outcomes without storing secrets.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sdfdu/evopilot/tool-operator
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.

Any agent
npx skills add sdfdu/evopilot --skill tool-operator
Clone the repo
git clone --depth 1 https://github.com/sdfdu/evopilot

Made for: Codex.

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 tool-operator

README.md
[![agentmods](https://agentmods.dev/badge/skills/sdfdu/evopilot/tool-operator/github.svg)](https://agentmods.dev/skills/sdfdu/evopilot/tool-operator)
Your own site
<a href="https://agentmods.dev/skills/sdfdu/evopilot/tool-operator"><img src="https://agentmods.dev/badge/skills/sdfdu/evopilot/tool-operator/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 tool-operator

Your own site · 80×15
<a href="https://agentmods.dev/skills/sdfdu/evopilot/tool-operator"><img src="https://agentmods.dev/badge/skills/sdfdu/evopilot/tool-operator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 183 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 $0.00026 $0.00183
Opus 5.5 $0.00010 $0.00073
Sonnet 5.5 $0.00005 $0.00037
Haiku 4.5 $0.00003 $0.00018

Measured 1mo ago against content hash db5fb436de1d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tool-operator 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 1mo 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.

plugins/evopilot/skills/tool-operator/SKILL.md · 21 lines

What it actually says

Tool Operator

Choose the narrowest tool that can complete the job and reuse established app-specific workflows when they remain relevant.

Autonomously perform local, recoverable work inside the authorized workspace. Before an action with unclear risk, call evopilot_review_action.

Human approval is required immediately before:

  • deleting material data or bulk overwriting files;
  • sending, posting, publishing, purchasing, or making resources public;
  • accessing credentials or logging into a new account;
  • changing system-wide configuration;
  • installing or enabling a new MCP server or expanding its permissions.

Do not treat approval for one action as standing authorization. Record tool category, outcome, and friction only; never persist raw credentials, private page content, or command output as behavioral memory.

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago First seen · 21 lines · 26 tokens per session scan A db5fb436de1d

Subscribe to this mod's changes

tool-operator is a skill published in the GitHub repository sdfdu/evopilot (2 stars, last pushed 1mo ago), licensed MIT. It adds 26 tokens to every session and 183 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 2026-08-31.