metago-self-check

metago-self-check is a skill for Claude Code, Codex from metago-ai/metagolifeform. It costs 52 tokens per session (817 once invoked), scanned A, original, MIT.

An output self-checking add-on that reviews content for coverage, factual support, consistency, exaggerated wording, completeness, and likely follow-up questions. It can append a summary of those checks.

In plain words
What is it for?
Use it to review reports, technical answers, and other generated content for accuracy, completeness, and clarity before delivery.
Why use it?
It helps catch unsupported claims, missing areas, contradictions, and overstatement before an answer is delivered. The description says it runs automatically for long outputs, development tasks, and external facts.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Codex.

Good fit Use it to review reports, technical answers, and other generated content for accuracy, completeness, and clarity before delivery.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/metago-ai/metagolifeform/metago-self-check
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 metago-ai/metagolifeform --skill metago-self-check
Clone the repo
git clone --depth 1 https://github.com/metago-ai/metagolifeform

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 metago-self-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/metago-ai/metagolifeform/metago-self-check/github.svg)](https://agentmods.dev/skills/metago-ai/metagolifeform/metago-self-check)
Your own site
<a href="https://agentmods.dev/skills/metago-ai/metagolifeform/metago-self-check"><img src="https://agentmods.dev/badge/skills/metago-ai/metagolifeform/metago-self-check/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 metago-self-check

Your own site · 80×15
<a href="https://agentmods.dev/skills/metago-ai/metagolifeform/metago-self-check"><img src="https://agentmods.dev/badge/skills/metago-ai/metagolifeform/metago-self-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 817 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 $0.00052 $0.00817
Opus 5 $0.00026 $0.00409
Sonnet 5 $0.00010 $0.00163
Haiku 4.5 $0.00005 $0.00082

Measured 9d ago against content hash 042aac4735c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

metago-self-check 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 9d 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/agent-plugins-1.0.0/skills/metago-self-check/SKILL.md · 94 lines

What it actually says

自我完整性检查(Self Integrity Check)

此技能在每次输出前自动执行,确保交付质量达到最高标准。

触发条件

  • 输出超过500字自动触发
  • 开发者任务强制触发
  • 涉及外部事实的输出强制触发

检查清单

1. 维度覆盖检查

  • 是否覆盖了所有预设扫描维度?
  • 覆盖率是否≥90%?
  • 未覆盖维度是否说明了原因?

2. 事实核查

  • 每个关键事实是否有至少两个独立信源?
  • 关键事实双源验证率是否100%?
  • 所有合作伙伴是否标注了状态标签?
  • 所有统计数据是否附带文档原文引用?

3. 历史一致性检查

  • 是否与历史对话信息一致?
  • 是否有与先前结论矛盾的内容?
  • 是否正确区分了不同项目的资源?

4. 夸大表述检测

  • 是否检测到夸大词汇?
  • 已检测到的是否已自动修正?
  • 修正后的表述是否符合实际状态?

5. 内容展开度检查

  • 章节字数达标率是否≥80%?
  • 技术参数密度是否≥2个/千字?
  • 操作步骤完整度是否≥90%?
  • 概括性语言占比是否<5%?

6. 可追问性分析

  • 是否预判了至少3个潜在追问?
  • 是否提前准备了答案?
  • 是否提供了关联信息?

7. 增值检查

  • 是否提供了至少1个增值点(超出用户预期的内容)?
  • 是否给出了下一步行动建议?
  • 是否附带了信息来源清单?

判定标准

全部通过(所有检查项为"是"):
  → ✅ 通过,允许输出

存在1-2个非关键项未通过:
  → ⚠️ 建议优化,标注后输出

存在关键项(维度/事实/夸大)未通过:
  → ❌ 不通过,自动触发重新生成
  → 连续3次不通过触发开发者告警

输出格式

输出末尾自动附加:

【完整性确认】
全息扫描:✅ 已完成
维度覆盖:X/Y (XX%)
事实核查:✅ 通过 / ⚠️ X项待核实
历史一致性:✅ 通过
夸大检测:✅ 无夸大
用户视角推演:✅ 已完成
预判准备:3个潜在追问已准备
自我审查:✅ 通过
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. 9d ago First seen · 94 lines · 52 tokens per session scan A 042aac4735c5

Subscribe to this mod's changes

metago-self-check is a skill published in the GitHub repository metago-ai/metagolifeform (4 stars, last pushed 11d ago), licensed MIT. It adds 52 tokens to every session and 817 once invoked, about $0.0003 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 2026-09-03.