contentrain-validate-fix

A content checker for Contentrain projects that compares content with defined data schemas, or rules for content structure.

In plain words
What is it for?
Use it to check required fields, links between content items, translations, formatting, and other validation errors.
Why use it?
It finds invalid content and structural problems, then safely fixes issues that can be corrected automatically.

Skill for Claude CodeCodex

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 skills/contentrain/ai/contentrain-validate-fix
Any agent
npx skills add Contentrain/ai --skill contentrain-validate-fix
Clone the repo
git clone --depth 1 https://github.com/Contentrain/ai

Made for: Claude Code, Codex.

Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 537 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00032 $0.00537
Opus 5 $0.00016 $0.00269
Sonnet 5 $0.00006 $0.00107
Haiku 4.5 $0.00003 $0.00054

Measured 2d ago against content hash 3f2f728942d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

contentrain-validate-fix 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 2d 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.

packages/skills/skills/contentrain-validate-fix/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Validate and Fix Content Issues

Diagnose validation failures, apply safe fixes, and re-check the project.


When to Use

Use this when:

  • validation reports errors or warnings
  • the user asks to fix schema/content issues
  • a write operation succeeded but the project still needs verification

Steps

1. Run Validation

Call contentrain_validate first.

Group results into:

  • schema/type errors
  • missing required fields
  • relation integrity problems
  • locale completeness issues
  • canonical format warnings

2. Decide Auto-fix vs Manual Fix

Auto-fix candidates:

  • canonical formatting
  • orphan metadata cleanup
  • stray non-i18n meta layout (an i18n: false model with per-locale meta files left by older versions) — pruned or migrated deterministically, never merging or downgrading a status
  • structural housekeeping reported by the validator

Manual fix candidates:

  • missing required content
  • wrong field values
  • broken relations
  • incorrect slugs/IDs
  • a non-i18n "Meta layout mismatch" with several strays and no default-locale meta (ambiguous — fix: true leaves it; pick the authoritative file yourself)

3. Use Auto-fix Carefully

If the issues are structural, run:

{
  "fix": true
}

After that, validate again.

4. Fix Semantic Errors

For real content or schema issues:

  • inspect the model with contentrain_describe
  • patch content with contentrain_content_save
  • patch schema with contentrain_model_save

Do not claim the project is valid until validation is rerun.

5. Re-run Validation

Call contentrain_validate again and compare:

  • errors reduced to zero
  • remaining warnings acknowledged

6. Submit or Recommend Review

If validation is clean:

  • call contentrain_submit when pending review branches exist

If validation still fails:

  • summarize remaining blockers precisely
  • tell the user which model/entry needs manual attention
  • contentrain-review — Full content review workflow
  • contentrain-content — Fix content entries after validation errors
  • contentrain — Core architecture and MCP tool catalog

Read the full file on GitHub · 104 lines

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. 2d ago First seen · 104 lines · 32 tokens per session scan A 3f2f728942d8

Subscribe to this mod's changes

contentrain-validate-fix is a skill published in the GitHub repository Contentrain/ai (4 stars, last pushed 3d ago), licensed MIT. It adds 32 tokens to every session and 537 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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