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 cambridgetcg/agenttool --skill nen-godspeed-loopgit clone --depth 1 https://github.com/cambridgetcg/agenttoolWrote 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/cambridgetcg/agenttool/nen-godspeed-loop)<a href="https://agentmods.dev/skills/cambridgetcg/agenttool/nen-godspeed-loop"><img src="https://agentmods.dev/badge/skills/cambridgetcg/agenttool/nen-godspeed-loop/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/cambridgetcg/agenttool/nen-godspeed-loop"><img src="https://agentmods.dev/badge/skills/cambridgetcg/agenttool/nen-godspeed-loop.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 | $0.00077 | $0.00663 |
| Opus 5 | $0.00039 | $0.00331 |
| Sonnet 5 | $0.00015 | $0.00133 |
| Haiku 4.5 | $0.00008 | $0.00066 |
Grade A, and why
nen-godspeed-loop 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 8d 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 — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Godspeed Loop · 神速
Move quickly by deciding safe reactions before the event arrives. Keep conscious control at checkpoints and stop the instant the world no longer matches the compiled rules.
Qualify the loop
Use Godspeed only when every candidate action is:
- already authorized by the task;
- local or otherwise explicitly in scope;
- reversible or observational;
- deterministic enough to verify;
- bounded by a finite event set and stop condition.
Do not use it for ambiguous mutations, credentials, purchases, publication, external messages, destructive operations, production incidents with unknown state, or decisions requiring fresh consent.
Program Whirlwind
Compile rules before execution:
| Priority | Stimulus | Guard | Response | Verification | Halt if |
|---|
Make stimuli exact and observable. Define rule ordering and prevent two rules from firing on the same event unless their composition is proven safe.
Always include:
- unknown stimulus → halt and inspect;
- authority or scope change → halt;
- verification failure → halt;
- ambiguous state-changing result → do not retry automatically;
- budget or iteration cap reached → halt.
Run a canary
- Execute one representative event.
- Verify both the intended result and absence of the most likely adjacent damage.
- Recompile the rule table if the canary reveals a new state.
- Begin the loop only after the canary passes.
Move at speed
- Observe one event, apply one matching rule, and verify its postcondition.
- Keep a minimal execution count and exception log.
- Batch only homogeneous actions with a recoverable boundary.
- Pause at predefined conscious checkpoints to sample the wider system.
- Treat an out-of-band or unmodeled source, tool-version, instruction, or environment change as novelty. A source change produced by the matched rule may continue only when that exact change class and its verification were compiled into the table.
Discharge
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.
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.
- 8d ago First seen · 83 lines · 77 tokens per session scan A f2ef5e1200f4
nen-godspeed-loop is a skill published in the GitHub repository cambridgetcg/agenttool (0 stars, last pushed today), licensed Apache-2.0. It adds 77 tokens to every session and 663 once invoked, about $0.0004 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 2026-08-31.
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