Borrowing it
Nothing to install: this file belongs to sponge-b0b/Polaris. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/sponge-b0b/Polaris/main/.agents/skills/verify-spec-closure/SKILL.mdgit clone --depth 1 https://github.com/sponge-b0b/PolarisWrote 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/skills/sponge-b0b/polaris/verify-spec-closure)<a href="https://agentmods.dev/skills/sponge-b0b/polaris/verify-spec-closure"><img src="https://agentmods.dev/badge/skills/sponge-b0b/polaris/verify-spec-closure/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/skills/sponge-b0b/polaris/verify-spec-closure"><img src="https://agentmods.dev/badge/skills/sponge-b0b/polaris/verify-spec-closure.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 | $0.00052 | $0.02926 |
| Opus 5 | $0.00026 | $0.01463 |
| Sonnet 5 | $0.00010 | $0.00585 |
| Haiku 4.5 | $0.00005 | $0.00293 |
Grade A, and why
verify-spec-closure 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 310 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Verify Spec Closure
Independently certify or reject semantic completion of the exact stable Spec candidate prepared by $verify-spec.
This skill exists to prevent $verify-spec from authorizing its own semantic PASS after it has also selected gates, interpreted failures, repaired the candidate, and assembled proof evidence.
It is not $review-spec:
$verify-spec-closureasks whether the integrated candidate satisfies the authoritative Spec contract;$review-specremains the later independent Standards / Spec / Architecture adversarial review and convergence layer.
Conditional Claim Discipline
This section is authoritative for any manifest cell whose requirement contains a material condition, trigger, phase, future event, or other predicate controlling when its consequent applies.
Preserve the source condition exactly. Do not silently transform:
when X occurs, Y must happen
into:
build a mechanism now that guarantees Y for every future X
unless the originating Spec itself requires that present mechanism/pre-provisioning.
For every materially conditional cell, record concise proof state:
Condition/trigger: <exact authoritative trigger>
Current trigger state: active | inactive | ambiguous
Trigger evidence: <current evidence>
Deferred routing evidence: <durable destination/owner | None>
Apply these rules:
active→ certify the consequent normally; current behavior must satisfy the cell;inactive→ current implementation of the consequent is not required unless the source explicitly requires pre-provisioning;- an inactive cell may be
not-applicablefor the current candidate only when the originating source establishes the condition and durable decomposition/lifecycle evidence preserves a future destination/owner for the obligation; - the preferred routing evidence is the parent Spec's current
Ticket Coverage Manifestrow with adeferred-conditionaldisposition; equivalent durable authority is acceptable only when it clearly names the future lifecycle/verification destination; inactivewithout durable future routing isunproven, not silently complete, because the obligation would otherwise escape by omission;ambiguoustrigger state isunproven;- when the trigger later becomes active, any prior inactive/not-applicable proof is stale by definition and may not be reused;
- the verifier must not invent CI, automation, project policy, a new workflow owner, or another durable mechanism merely to make an inactive conditional cell provable.
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.
- 3d ago Changed · +123 lines 85c1dea357b8
- 5d ago First seen · 187 lines · 52 tokens per session scan A f4c94235a695
verify-spec-closure is a skill published in the GitHub repository sponge-b0b/Polaris (4 stars, last pushed yesterday), licensed Apache-2.0. It adds 52 tokens to every session and 2,926 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 2026-09-04.
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