verify

verify is a skill for Claude Code, Codex from contract-hero/sui-pilot. It costs 214 tokens per session (3,238 once invoked), scanned A, original, MIT.

A verification command for formal specifications attached to Sui Move code. Formal specifications are machine-checkable claims about what code should guarantee, and Sui Move is a smart-contract programming language.

In plain words
What is it for?
It is for re-running proofs, detecting specification drift, and producing a report without authoring or changing the specifications.
Why use it?
It checks whether previously proved claims still match the current code, dependencies, and toolchain, and detects uncovered externally reachable functions.

Skill for Claude CodeCodex

Part of the sui-pilot plugin — 6 skills, 6 commands, 1 agent shipped together

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/contract-hero/sui-pilot/verify
Any agent
npx skills add contract-hero/sui-pilot --skill verify
Clone the repo
git clone --depth 1 https://github.com/contract-hero/sui-pilot

Made for: Claude Code, Codex.

Or install sui-pilot, the plugin that ships this one along with the rest of its 6 skills, 6 commands, 1 agent.

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/contract-hero/sui-pilot/verify.svg)](https://agentmods.dev/skills/contract-hero/sui-pilot/verify)
Your own site
<a href="https://agentmods.dev/skills/contract-hero/sui-pilot/verify"><img src="https://agentmods.dev/badge/skills/contract-hero/sui-pilot/verify.svg" alt="Measured on agentmods" height="20"></a>
Per session 214 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,238 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 $0.00214 $0.03238
Opus 5 $0.00107 $0.01619
Sonnet 5 $0.00043 $0.00648
Haiku 4.5 $0.00021 $0.00324

Measured 5d ago against content hash baa73a9f6969, 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 5d 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.

skills/verify/SKILL.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verify — re-check Sui Move formal specifications against current code

Doc-First Requirement. The spec language is the Sui Prover's, not legacy MSL. When interpreting prove_package findings, use the shared ../specify/references/failure-taxonomy.md and .sui-prover-docs/guide/spec-reference.md. /verify reads and re-proves specs — it never emits new spec syntax.

What /verify is (and is not)

/specify and /verify are the two halves of the FV workflow (design doc docs/specify-deliverable-design.html, Q4):

  • /specify authors. It writes #[spec(prove, target = …)] twins into a sibling <pkg>_specs/ package and emits a spec-context.json manifest binding each spec to the exact state it was proved against.
  • /verify checks. It is read-mostly — it re-proves the existing specs against current source/deps/toolchain and reports drift. It writes only a report (and optionally refreshes drift badges in /specify's report). It never authors, edits, or deletes a spec.

A spec is a claim of the form "this code, at this state, against these deps, satisfies this property." /verify's job is to answer "is that claim still true, and is it still about the current code?" Those are two different questions — a spec can still pass yet no longer describe the code (source drifted), and a spec can fail on unchanged code (a real regression). /verify distinguishes them (Phase 4).

Inputs and modes

  • Manifest-driven (full). When spec-context.json exists (a package /specify produced), /verify does drift-aware verification: per-function source-hash comparison, dep/toolchain reproducibility checks, coverage drift, then re-prove.
  • Degraded (no manifest). When there is no spec-context.json (hand-written specs, e.g. ~/workspace/integer-library, or specs predating the manifest), /verify still works: it discovers the spec package(s), re-proves them, and reports verdicts — but announces that drift detection is unavailable (no bound state to compare against) and suggests running /specify once to mint a manifest.

Read the full file on GitHub · 118 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. 5d ago First seen · 118 lines · 214 tokens per session scan A baa73a9f6969

Subscribe to this mod's changes

verify is a skill published in the GitHub repository contract-hero/sui-pilot (10 stars, last pushed 4d ago), licensed MIT. It adds 214 tokens to every session and 3,238 once invoked, about $0.0011 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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