verify

verify is a skill for Claude Code, Codex from jongwony/epistemic-protocols. It costs 58 tokens per session (1,336 once invoked), scanned A, original, MIT.

A pre-commit checker for reviewing the consistency and soundness of epistemic protocols, such as rules for defining and evaluating knowledge.

In plain words
What is it for?
It runs static checks and expert review when you invoke `/verify`, reporting passes, failures, and warnings with severity levels.
Why use it?
It finds structural and definition problems before a commit without blocking the commit. Results are shown for the user to judge.

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/jongwony/epistemic-protocols/verify
Any agent
npx skills add jongwony/epistemic-protocols --skill verify
Clone the repo
git clone --depth 1 https://github.com/jongwony/epistemic-protocols

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 verify

README.md
[![agentmods](https://agentmods.dev/badge/skills/jongwony/epistemic-protocols/verify.svg)](https://agentmods.dev/skills/jongwony/epistemic-protocols/verify)
Your own site
<a href="https://agentmods.dev/skills/jongwony/epistemic-protocols/verify"><img src="https://agentmods.dev/badge/skills/jongwony/epistemic-protocols/verify.svg" alt="Measured on agentmods" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,336 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 $0.00058 $0.01336
Opus 5 $0.00029 $0.00668
Sonnet 5 $0.00012 $0.00267
Haiku 4.5 $0.00006 $0.00134

Measured today against content hash 667ab6fe3c21, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verify 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 today.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/artifact-self-containment.js, scripts/language-purity.js, scripts/static-checks.js, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.claude/skills/verify/SKILL.md · 175 lines

How it starts

The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Protocol Verification

Verify epistemic protocol consistency before commit through static checks and expert review.

Purpose

Surface potential issues in protocol definitions without blocking commits. Follow Anthropic philosophy: transparency over enforcement, user agency over automation.

Core Principles

Principle Implementation
Surface, don't enforce Present findings; user decides action
Zero-context scripts Static checks run without consuming context
Explicit control User invokes /verify intentionally
Graduated severity Critical / Concern / Note categorization

Workflow

Phase 1: Static Checks

Run scripts/static-checks.js against project root. This script executes without loading into context.

node ${SKILL_DIR}/scripts/static-checks.js ${PROJECT_ROOT}

Output format:

{
  "pass": [{ "check": "...", "file": "...", "message": "..." }],
  "fail": [{ "check": "...", "file": "...", "message": "..." }],
  "warn": [{ "check": "...", "file": "...", "message": "..." }]
}

Checks performed: Structural conformance (JSON schema, Unicode notation, directive verbs, required sections, morphism anatomy, gate-type soundness), cross-reference and routing integrity (cross-reference integrity and scan, routing-index contract, onboard/catalog sync, partition invariant), drift prevention (version staleness, codex-manifest sync, spec-vs-impl drift, single-axis soundness, emit-load discipline, framing-readout enforcement, language purity), and packaging/contract sync (artifact self-containment, packaged-agent contract sync). The check inventory is the script itself (scripts/static-checks.js); references/verification.md carries why the non-obvious checks exist and what to do when one fires.

Phase 2: Expert Review

Spawn parallel Task subagents for LLM-based review — one per perspective (Type Theory / Category Theory, Instruction Design, Claude Code Ecosystem). Load each subagent's prompt template from references/review-checklists.md (single source of truth; do not duplicate the templates here — see Review Checklists below). Each template samples the protocols changed in the current diff, falling back to a representative sample when the diff is not protocol-scoped.

Read the full file on GitHub · 175 lines

Files

What ships with it

8 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. today Changed · -4 lines 667ab6fe3c21
  2. 5d ago First seen · 179 lines · 58 tokens per session scan A af4725de0901

Subscribe to this mod's changes

verify is a skill published in the GitHub repository jongwony/epistemic-protocols (160 stars, last pushed today), licensed MIT. It adds 58 tokens to every session and 1,336 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 2026-08-30.