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.
npx skills add MichelKerkmeester/skilled-agent-harness_spec-driven-loops --skill 12.pregit clone --depth 1 https://github.com/MichelKerkmeester/skilled-agent-harness_spec-driven-loopsWrote 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/michelkerkmeester/skilled-agent-harness_spec-driven-loops/12.pre)<a href="https://agentmods.dev/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/12.pre"><img src="https://agentmods.dev/badge/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/12.pre/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/michelkerkmeester/skilled-agent-harness_spec-driven-loops/12.pre"><img src="https://agentmods.dev/badge/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/12.pre.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 | $0.00025 | $0.02854 |
| Opus 5.5 | $0.00010 | $0.01142 |
| Sonnet 5.5 | $0.00005 | $0.00571 |
| Haiku 4.5 | $0.00003 | $0.00285 |
Grade A, and why
sk-create-goal 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 16d 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.
This is a copy
86% identical to sk-create-goal — 43 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create Packet Goals
sk-create-goal authors goal.md content for an existing spec packet. It fills per-kind templates that are checked copies of the system-spec-kit goal template and keeps runtime goal state with its existing owners.
1. WHEN TO USE
Activation Triggers
Use this packet to:
- Author or revise a top-level goal or phase-parent goal.
- Author or revise a nested phase-child goal.
- Add
goal.mdto an existing packet that has no goal. - Add a binding row and matching child goal when someone adds a phase.
- Cut an over-budget parent goal without dropping a completion criterion.
- Print a parent goal's chat slice for the operator to set or resend.
- Handle a request that enters through
/create:goal.
Keyword triggers: create packet goal, author goal.md, revise packet goal, phase parent goal, nested phase child goal, add a goal file, goal chat slice, /create:goal.
When NOT to Use
- The target packet does not exist. Use system-spec-kit to create it first.
- The packet's phase structure is not established. Use system-spec-kit to plan the phases first.
- The request is to set, bind, inject or resend a session objective. Redirect it to the goal hooks or the host's native goal command.
- The request changes runtime goal behavior or system-spec-kit template tooling. Those owners remain outside this packet.
This packet authors files only. Its goal-file work does not change session state.
2. SMART ROUTING
Run these four decisions before writing:
- File content or session state? A request to author or revise a packet's
goal.mdis file work. A request to set, bind, inject or resend a session objective belongs to the goal hooks or the host's native goal command. Redirect session-state requests without editing a packet goal. - Does the packet exist? What role does it have? Confirm the target directory exists. A nested phase child has a parent directory containing
spec.md. A packet with direct phase-child directories is the phase parent. Otherwise, treat it as a top-level packet. If the packet is missing, route packet creation to system-spec-kit first. - Does
goal.mdexist? Revise an existing goal. Add one to an existing packet that has none. Do not treat a missing packet as a goal-file request. - Does a child change alter a parent decision or criterion? If it does, amend the parent first. Then print the updated parent chat slice for the operator to resend. Do not let a child goal override a parent decision.
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.
- 16d ago First seen · 184 lines · 25 tokens per session scan A 3555d20b7229
sk-create-goal is a skill published in the GitHub repository MichelKerkmeester/skilled-agent-harness_spec-driven-loops (37 stars, last pushed yesterday), licensed MIT. It adds 25 tokens to every session and 2,854 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 86% identical to sk-create-goal, differing in 43 lines, and is treated as a copy.
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