verification-before-completion

verification-before-completion is a skill for Codex from OutlineDriven/odin-claude-plugin. It costs 57 tokens per session (1,005 once invoked), scanned A, original, Apache-2.0.

A read-only final check for claims that a task, feature, or fix is done or working. It runs one narrow proving action and labels the claim verified, partial, unverified, failed, or timed out.

In plain words
What is it for?
Use it before declaring work complete, committing, opening a pull request, or moving to the next task.
Why use it?
It prevents completion statements that are not supported by a fresh check.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Part of the odin-core plugin — 16 skills shipped together

Good fit Use it before declaring work complete, committing, opening a pull request, or moving to the next task.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/outlinedriven/odin-claude-plugin/verification-before-completion
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.

Any agent
npx skills add OutlineDriven/odin-claude-plugin --skill verification-before-completion
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/odin-claude-plugin

Made for: Codex.

Or install odin-core, the plugin that ships this one along with the rest of its 16 skills.

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 verification-before-completion

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/verification-before-completion.svg)](https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/verification-before-completion)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/verification-before-completion"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/verification-before-completion.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,005 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00057 $0.01005
Opus 5 $0.00028 $0.00502
Sonnet 5 $0.00011 $0.00201
Haiku 4.5 $0.00006 $0.00101

Measured yesterday against content hash 71bdde6200dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

verification-before-completion 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 yesterday.

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.

plugins/odin-core/skills/verification-before-completion/SKILL.md · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verification before completion

Contract

Field Bound contract
Trigger A done, fixed, passes, complete, or ready claim is imminent; a commit, PR, or next-task move is about to happen; or satisfaction is about to be expressed.
Authority Read-only. No file, VCS, credential, paid, published, deployed, or remote mutation. Reads only what is required to classify the claim, and executes the one named proving action.
Side effect Runs the narrow proving command or scenario; edits nothing; blocks the completion claim when the output contradicts it.
Done Each claim carries fresh output from exactly one proving action (or the UNVERIFIED-NO-SURFACE classification when no checkable surface exists), the claim wording matches the output, and failures are reported honestly.

Inputs

  • Fires on: Explicit invocation, or a user utterance that contains a completion claim.
  • Must supply: The specific claim being made; what would prove it; whether it has been run; the output of the check.
  • Optional: The exact command or scenario run; the raw output read; any partial results.

Procedure

  1. Handle the no-check surface. If the change has no checkable surface (comment-only, pure prose, a rename with no attached behavior), state that plainly and classify as UNVERIFIED-NO-SURFACE. Do not invent a check to run; skip the proving-action steps and report the classification. Done when: the surface is classified as checkable or UNVERIFIED-NO-SURFACE.
  2. Name the proving action. For a checkable surface, identify the precise action that would prove the claim: a specific test, build, lint pass, input scenario, file read, or reproduction of the original failure. "The three tests covering the retry path" is precise; "the test suite" is not. Done when: one precise proving action is named for the checkable surface.
  3. Run it. Execute the named action after the last relevant edit to the code. Do not run before the edit and claim the result as post-edit evidence. Done when: the proving action has been executed after the last edit.
  4. Read all of it. Read the full output and the exit code. Do not read only a tail, a summary, or the last line. Treat the exit code as a fact to check. Done when: the full output and exit code are read.
  5. Classify. VERIFIED if the output confirms the claim at its stated scope; PARTIAL if evidence exists but does not cover the full scope (state what passed and what was left unchecked); UNVERIFIED if no check was run (state "not run" plainly); FAILED if the output contradicts the claim (report the contradiction exactly). Done when: one classification is assigned with its justification.
  6. Report. State the classification, the action that was run, what it showed, and the exact claim wording it does or does not support. Do not hedge; do not round up a partial result to "done." Done when: the report states the classification, action, output, and claim wording.

Read the full file on GitHub · 47 lines

Files

What ships with it

1 file 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. yesterday Changed · -33 tokens per session 71bdde6200dd
  2. 3d ago First seen · 47 lines · 90 tokens per session scan A ce2f18eb8226

Subscribe to this mod's changes

verification-before-completion is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (35 stars, last pushed today), licensed Apache-2.0. It adds 57 tokens to every session and 1,005 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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