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 agentmods add commands/openclaw/crabbox/prewarmgit clone --depth 1 https://github.com/openclaw/crabboxWhat 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 | $0.00000 | $0.01181 |
| Opus 5 | $0.00000 | $0.00590 |
| Sonnet 5 | $0.00000 | $0.00236 |
| Haiku 4.5 | $0.00000 | $0.00118 |
Grade A, and why
prewarm 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 3d 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 — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.
prewarm
crabbox prewarm leases a reusable box and prepares it for test runs. For
SSH-backed providers it runs the same configured GitHub Actions hydration that
crabbox run would otherwise do on first use; for delegated providers such as
Blacksmith Testbox, hydration stays provider-owned.
crabbox prewarm
crabbox prewarm --provider azure --probe-command 'node -v && pnpm -v'
crabbox prewarm --pool example/app/main/linux --pool-compatibility-key linux-16-vcpu
crabbox prewarm --provider aws --pool example/app/main/linux --pool-cache-compatibility node-22-pnpm-10
crabbox prewarm --dry-run
The command prints the lease id and keeps the box running. Stop it with
crabbox stop <id> when the test burst is done.
If Actions hydration, the optional probe, or ready-pool registration fails,
prewarm automatically releases a newly created SSH lease. If automatic
release cannot resolve or stop the lease, the error output prints the exact
crabbox stop command to run; delegated-run providers retain their
provider-owned lifecycle behavior.
Before configuring a backend, warming a box, checking typed ready-pool support,
or printing a dry-run plan, prewarm validates the generated probe against the
selected provider's run contract. The probe reuses the planned lease with
--no-sync --no-hydrate --shell; unsupported probes fail with exit code 2
before warmup. This admission does not resolve a lease or inspect prior claims.
Prewarm also validates the provider configuration that hydration and probes
will reload. Creation-only flags stay on warmup and are not forwarded to either
follow-up. If a creation override hides an invalid saved value, fix that saved
configuration before requesting hydration or a probe; prewarm rejects the
invalid follow-up before allocation, including with --dry-run. Plain prewarm
without hydration or a probe keeps its normal creation override behavior.
Reuse
Run follow-up commands against the printed lease id or slug:
crabbox run --id <id-or-slug> --no-sync -- pnpm test
crabbox run --id <id-or-slug> -- pnpm test
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.
- 3d ago First seen · 110 lines · 0 tokens per session scan A 9987875d9ebd
prewarm is a command published in the GitHub repository openclaw/crabbox (1,343 stars, last pushed 3d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,181 tokens. 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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