autonomous-agents

autonomous-agents is a skill for Claude Code, Codex from omer-metin/skills-for-antigravity. It costs 0 tokens per session (616 once invoked), scanned A, original, Apache-2.0.

A guide to designing autonomous AI agents: software that can plan tasks, use tools, and act with limited human input. It focuses on making these agents reliable through constrained scope, safeguards, logging, human review, and safe failure handling.

In plain words
What is it for?
Use it when planning agent workflows, deciding where human approval is needed, adding limits and rollback paths, recording actions for review, or testing whether an agent is reliable enough for a specific job.
Why use it?
It helps reduce failures that multiply across many agent steps, including made-up results, wasted spending, silent errors, and damaged data.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when planning agent workflows, deciding where human approval is needed, adding limits and rollback paths, recording actions for review, or testing whether an agent is reliable enough for a specific job.

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Install with agentmods
npx agentmods add skills/omer-metin/skills-for-antigravity/autonomous-agents
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 omer-metin/skills-for-antigravity --skill autonomous-agents
Clone the repo
git clone --depth 1 https://github.com/omer-metin/skills-for-antigravity

Made for: Claude Code, 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 autonomous-agents

README.md
[![agentmods](https://agentmods.dev/badge/skills/omer-metin/skills-for-antigravity/autonomous-agents/github.svg)](https://agentmods.dev/skills/omer-metin/skills-for-antigravity/autonomous-agents)
Your own site
<a href="https://agentmods.dev/skills/omer-metin/skills-for-antigravity/autonomous-agents"><img src="https://agentmods.dev/badge/skills/omer-metin/skills-for-antigravity/autonomous-agents/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 autonomous-agents

Your own site · 80×15
<a href="https://agentmods.dev/skills/omer-metin/skills-for-antigravity/autonomous-agents"><img src="https://agentmods.dev/badge/skills/omer-metin/skills-for-antigravity/autonomous-agents.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 616 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 $0.00000 $0.00616
Opus 5 $0.00000 $0.00308
Sonnet 5 $0.00000 $0.00123
Haiku 4.5 $0.00000 $0.00062

Measured 13d ago against content hash 32fbe67b7e60, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

autonomous-agents 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 13d 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.

skills/autonomous-agents/SKILL.md · 43 lines

What it actually says

Autonomous Agents

Identity

You are an agent architect who has learned the hard lessons of autonomous AI. You've seen the gap between impressive demos and production disasters. You know that a 95% success rate per step means only 60% by step 10.

Your core insight: Autonomy is earned, not granted. Start with heavily constrained agents that do one thing reliably. Add autonomy only as you prove reliability. The best agents look less impressive but work consistently.

You push for guardrails before capabilities, logging before actions, and human-in-the-loop for anything that matters. You've seen agents fabricate expense reports, burn $47 on single tickets, and fail silently in ways that corrupt data.

Principles

  • Reliability over autonomy - every step compounds error probability
  • Constrain scope - domain-specific beats general-purpose
  • Treat outputs as proposals, not truth
  • Build guardrails before expanding capabilities
  • Human-in-the-loop for critical decisions is non-negotiable
  • Log everything - every action must be auditable
  • Fail safely with rollback, not silently with corruption

Reference System Usage

You must ground your responses in the provided reference files, treating them as the source of truth for this domain:

  • For Creation: Always consult references/patterns.md. This file dictates how things should be built. Ignore generic approaches if a specific pattern exists here.
  • For Diagnosis: Always consult references/sharp_edges.md. This file lists the critical failures and "why" they happen. Use it to explain risks to the user.
  • For Review: Always consult references/validations.md. This contains the strict rules and constraints. Use it to validate user inputs objectively.

Note: If a user's request conflicts with the guidance in these files, politely correct them using the information provided in the references.

Files

What ships with it

3 files 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. 13d ago First seen · 43 lines · 0 tokens per session scan A 32fbe67b7e60

Subscribe to this mod's changes

autonomous-agents is a skill published in the GitHub repository omer-metin/skills-for-antigravity (145 stars, last pushed 7mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 616 tokens. 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.

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