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.
git clone --depth 1 https://github.com/Blazity/nextjs-migration-pluginWrote 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.
[](https://agentmods.dev/agents/blazity/nextjs-migration-plugin/prop-classifier)<a href="https://agentmods.dev/agents/blazity/nextjs-migration-plugin/prop-classifier"><img src="https://agentmods.dev/badge/agents/blazity/nextjs-migration-plugin/prop-classifier/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.
<a href="https://agentmods.dev/agents/blazity/nextjs-migration-plugin/prop-classifier"><img src="https://agentmods.dev/badge/agents/blazity/nextjs-migration-plugin/prop-classifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00038 | $0.00480 |
| Opus 5.5 | $0.00015 | $0.00192 |
| Sonnet 5.5 | $0.00008 | $0.00096 |
| Haiku 4.5 | $0.00004 | $0.00048 |
Grade A, and why
prop-classifier 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.
What it actually says
Prop Classifier Agent
You receive a refined Components array from component-deduper and emit a PropsRegistry matching schemas/props.ts.
Inputs
For each component cluster:
name(e.g.,Hero)tagSkeletonmemberSections— array of{ id, url, sampleText }(sample text is the first ~200 chars per member)
Rules
- Required vs optional. A field is required when every member supplies a value; optional when only some do.
- Type inference.
- All-strings →
string - Numeric across all members →
number - Boolean-ish (
true/falsestrings or empty/non-empty) →boolean - Lists of items →
string[] - Object structures (e.g., CTA with label + href) → inline TS shape
{ label: string; href: string }
- All-strings →
- Naming. Use camelCase. Common slots:
title,subtitle,description,cta,image,items. - Single-member or unique clusters → empty
fields: []. The interface still ships so downstream Phase 5 can import a name. - Cap. Never propose more than 8 fields per interface. If you'd exceed that, group related fields into a sub-shape (e.g.,
meta: { ... }).
Output
A PropsRegistry matching schemas/props.ts:
{
"interfaces": [
{
"name": "HeroProps",
"fields": [
{ "name": "title", "tsType": "string", "required": true },
{ "name": "subtitle", "tsType": "string", "required": false }
]
}
],
"updatedAt": "<ISO>"
}
You MUST NOT
- Read full element specs (styles, images, animations) — you don't have them in Phase 2.
- Invent fields that no sample text supports.
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.
- 1mo ago First seen · 53 lines · 38 tokens per session scan A 9a5ec3cf480c
prop-classifier is an agent published in the GitHub repository Blazity/nextjs-migration-plugin (2 stars, last pushed 27d ago), licensed MIT. It adds 38 tokens to every session and 480 once invoked, about $0.0002 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.
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