invalid-manifest-protection

invalid-manifest-protection is a skill for Claude Code, Codex from paruff/uFawkesAI. It costs 36 tokens per session (421 once invoked), scanned A, original, MIT.

A validation procedure that checks whether broken Kubernetes configuration files are rejected before they reach GitOps, the system that applies configuration changes, or a cluster.

In plain words
What is it for?
Use it to test pipeline rejection of invalid manifests and confirm that error messages are clear and no invalid configuration is released.
Why use it?
It catches malformed YAML, missing fields, bad image tags, schema errors, and broken Kustomize or Helm configuration before deployment.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; installed under .agents/ (shared by several agents); mentions Codex.

Good fit Use it to test pipeline rejection of invalid manifests and confirm that error messages are clear and no invalid configuration is released.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/paruff/ufawkesai/manifest-protection
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 paruff/uFawkesAI --skill manifest-protection
Clone the repo
git clone --depth 1 https://github.com/paruff/uFawkesAI

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 invalid-manifest-protection

README.md
[![agentmods](https://agentmods.dev/badge/skills/paruff/ufawkesai/manifest-protection/github.svg)](https://agentmods.dev/skills/paruff/ufawkesai/manifest-protection)
Your own site
<a href="https://agentmods.dev/skills/paruff/ufawkesai/manifest-protection"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/manifest-protection/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 invalid-manifest-protection

Your own site · 80×15
<a href="https://agentmods.dev/skills/paruff/ufawkesai/manifest-protection"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/manifest-protection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 421 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 $0.00036 $0.00421
Opus 5 $0.00018 $0.00211
Sonnet 5 $0.00007 $0.00084
Haiku 4.5 $0.00004 $0.00042

Measured 11d ago against content hash a2775f5b9380, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

invalid-manifest-protection 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 11d 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.

.agents/skills/e2e-testing/e2e-failure-paths/manifest-protection/SKILL.md · 70 lines

What it actually says

Skill: Invalid Manifest Protection

Load trigger: "load invalid-manifest-protection skill" > DORA: Cap 5 (Operational Resilience) Token cost: Low

Purpose

Ensure invalid manifests never reach GitOps or the cluster.

Responsibilities

  • Simulate invalid Kustomize overlays
  • Simulate invalid Helm templates
  • Validate pipeline rejection

Inputs

  • Broken manifests

Outputs

  • manifest-protection.json

Invalid Manifest Types

Type Example Expected Behavior
Invalid YAML Malformed syntax Pipeline rejects
Missing required field Missing apiVersion Pipeline rejects
Invalid image tag Empty tag Pipeline rejects
Schema violation Wrong field type Pipeline rejects
Kustomize error Missing base Pipeline rejects

Validation Rules

  • Invalid manifests detected
  • Pipeline rejects invalid manifests
  • No invalid manifests reach GitOps
  • Error messages clear

Output Format

{
  "skill": "invalid-manifest-protection",
  "status": "pass | fail",
  "tests": [
    { "type": "invalid_yaml", "rejected": true },
    { "type": "missing_field", "rejected": true },
    { "type": "invalid_tag", "rejected": true }
  ],
  "all_rejected": true
}

Success Criteria

  • Invalid manifests blocked
  • No invalid manifests reach GitOps
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. 11d ago First seen · 70 lines · 36 tokens per session scan A a2775f5b9380

Subscribe to this mod's changes

invalid-manifest-protection is a skill published in the GitHub repository paruff/uFawkesAI (2 stars, last pushed 19d ago), licensed MIT. It adds 36 tokens to every session and 421 once invoked, about $0.0002 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 2026-08-31.

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