agentmods.dev

goal-engineering: Skill for Claude Code

.grok/skills/goal-completion-check/SKILL.md

goal-completion-check is a skill for Claude Code, Codex from cobusgreyling/goal-engineering. It costs 52 tokens per session (211 once invoked), scanned A, original, MIT.

A completion checklist for coding-agent goals. It checks the written requirements, verification result, and test record before a goal is marked finished.

In plain words
What is it for?
Use it before closing an implementation task to confirm that the verifier passed, tests ran, and the GOAL.md checklist is complete.
Why use it?
It prevents work from being marked complete based only on a belief that it should work. Missing checks or unfinished checklist items are surfaced first.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is cobusgreyling/goal-engineering's own configuration. It tells Claude Code and Codex how to work on goal-engineering itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything goal-engineering configures →

not rated 51repo 4mo ago A scan 52 tokens original MIT
View source ↗ cobusgreyling/goal-engineering cobusgreyling.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to cobusgreyling/goal-engineering. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/cobusgreyling/goal-engineering/main/.grok/skills/goal-completion-check/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/cobusgreyling/goal-engineering

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 goal-completion-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/cobusgreyling/goal-engineering/goal-completion-check/github.svg)](https://agentmods.dev/skills/cobusgreyling/goal-engineering/goal-completion-check)
Your own site
<a href="https://agentmods.dev/skills/cobusgreyling/goal-engineering/goal-completion-check"><img src="https://agentmods.dev/badge/skills/cobusgreyling/goal-engineering/goal-completion-check/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.

agentmods 80×15 button for goal-completion-check

Your own site · 80×15
<a href="https://agentmods.dev/skills/cobusgreyling/goal-engineering/goal-completion-check"><img src="https://agentmods.dev/badge/skills/cobusgreyling/goal-engineering/goal-completion-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 211 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.
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 $0.00052 $0.00211
Opus 5.5 $0.00021 $0.00084
Sonnet 5.5 $0.00010 $0.00042
Haiku 4.5 $0.00005 $0.00021

Measured 2mo ago against content hash 9dd921a3f880, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

goal-completion-check 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 2mo 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.

.grok/skills/goal-completion-check/SKILL.md · 25 lines

What it actually says

Goal Completion Check

Gate before update_goal(completed: true).

Steps

  1. Read GOAL.md done condition — count unchecked items.
  2. Confirm goal-verifier (or equivalent) returned PASS this session.
  3. Confirm test command was run and output captured in progress log.
  4. If any gap → do not complete; list remaining work and call update_goal(message: ...).
  5. If all clear → call update_goal(completed: true, message: "<summary>").

Never

  • Complete on "should work" or partial test runs.
  • Complete when deny-listed files were modified without human approval.
  • Complete when verifier was skipped.
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. 2mo ago First seen · 25 lines · 52 tokens per session scan A 9dd921a3f880

Subscribe to this mod's changes

goal-completion-check is a skill published in the GitHub repository cobusgreyling/goal-engineering (51 stars, last pushed 4mo ago), licensed MIT. It adds 52 tokens to every session and 211 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 2026-08-30.

Building agentsai-agentsautomationgoal-engineeringgrokgrok-buildverifier-skills
Related

goal-completion-check compared with skills from other repositories

goal-completion-check next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
goal-completion-checkcobusgreyling/goal-engineeringSkill514mo agoMITA52Claude Code, Codex
grok-subagentWalvez/grok-subagentSkill53mo agoMITA112Codex
delegate-to-grokSunwood-ai-labs/delegate-to-grok-skillSkill22mo agoMITA74Codex
grok-promptingdavit-khaburdzania/grok-plugin-ccSkill12mo agoApache-2.0A31Claude Code
grok-bridgeconrad85/grok-bridgeSkill02mo agoMITA90Codex
nexfadeNexFade/nexfade-grok-pluginSkill02mo agoMITA26Claude Code
readiness-scorercobusgreyling/grok-build-showcaseSkill25mo agoMITA98Claude Code