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 GiustoPiedimonte/agentic-engineering-marketplace --skill measuregit clone --depth 1 https://github.com/GiustoPiedimonte/agentic-engineering-marketplaceWrote 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/giustopiedimonte/agentic-engineering-marketplace/measure)<a href="https://agentmods.dev/skills/giustopiedimonte/agentic-engineering-marketplace/measure"><img src="https://agentmods.dev/badge/skills/giustopiedimonte/agentic-engineering-marketplace/measure/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/giustopiedimonte/agentic-engineering-marketplace/measure"><img src="https://agentmods.dev/badge/skills/giustopiedimonte/agentic-engineering-marketplace/measure.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 | $0.00065 | $0.00450 |
| Opus 5 | $0.00032 | $0.00225 |
| Sonnet 5 | $0.00013 | $0.00090 |
| Haiku 4.5 | $0.00006 | $0.00045 |
Grade A, and why
measure 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 12d 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.
What it actually says
/measure — turn a gated decision into a data verdict
When a decision is blocked on "what do the data actually say?", measure instead
of guessing. $ARGUMENTS is the question to answer.
Process
- State the question precisely and what verdict each outcome implies (e.g. "if <1% of sessions hit this path -> cut; otherwise keep").
- Delegate to the
measurersubagent (or run directly if trivial). All access is read-only — open databases read-only, query logs/metrics without mutation. Never print secrets (no env dumps / token values). - Report: the question, the exact read-only command(s) run, the raw result, and a clear verdict (flip / keep / cut) with the reasoning.
- If the data isn't ready (the runtime window hasn't matured, or the metric isn't populated), say so explicitly and state what window/data would settle it. Do not invent a verdict.
Distinguish what the data shows from what you infer from it. A measure-gated decision stays open until the measurement is real.
Flip-gate for dark launches
This is the mechanism that flips a dark-launched change ON (see /ship §4 and
the Flip-criteria field in /adr). When a decision was merged dormant with a
recorded flip-criterion, /measure is what closes it: run the read-only check
against that exact criterion and window, then return flip / keep / cut. Flip
only on a real flip verdict — never on a green build or a synthetic check, which
validate the mechanism, not the magnitude.
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.
- 12d ago First seen · 41 lines · 65 tokens per session scan A f0de73224c78
measure is a skill published in the GitHub repository GiustoPiedimonte/agentic-engineering-marketplace (13 stars, last pushed 1mo ago), licensed MIT. It adds 65 tokens to every session and 450 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 2026-08-30.
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