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 skills/benchbox-dev/benchbox/skill-syncnpx skills add BenchBox-dev/BenchBox --skill skill-syncgit clone --depth 1 https://github.com/BenchBox-dev/BenchBoxWrote 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/benchbox-dev/benchbox/skill-sync)<a href="https://agentmods.dev/skills/benchbox-dev/benchbox/skill-sync"><img src="https://agentmods.dev/badge/skills/benchbox-dev/benchbox/skill-sync.svg" alt="Measured on agentmods" 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 | $0.00034 | $0.00377 |
| Opus 5 | $0.00017 | $0.00188 |
| Sonnet 5 | $0.00007 | $0.00075 |
| Haiku 4.5 | $0.00003 | $0.00038 |
Grade A, and why
skill-sync 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 yesterday.
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
Skill Sync
Read the project-root skill-sync.yaml, then read
references/operations.md before acting.
Critical rules
- Resolve the authoritative source before any write: use
source_namewhen set; otherwise use the first configured source containing the skill. - Never edit a generated target as the source of truth.
- The
skill-syncproduct repository owns its bundledskills/skill-syncoperator skill. Installed and catalog copies are generated consumers. - Stop before sync when managed tracked files are dirty. Review and commit produced tracked changes before unrelated work.
Actions
| Action | Read |
|---|---|
setup, sync, status, validate, verify, diff, doctor |
references/operations.md |
pin, unpin, prune, promote, settings |
references/operations.md |
agent-config |
references/operations.md |
help |
this table |
Flags
- Global:
--json/-j,--project/-p,--help/-h. - Sync:
--dry-run/-n,--force/-f. - Validate:
--exit-code. Settings:--agent. Prune:--dry-run. - Agent config:
capture,validate, orrestore; supports--dry-run,--forcefor restore, and--json. - Use
--forceonly when source and target ownership is known.
What ships with it
2 files 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.
- yesterday First seen · 38 lines · 34 tokens per session scan A 68f73b8880bc
skill-sync is a skill published in the GitHub repository BenchBox-dev/BenchBox (12 stars, last pushed today), licensed MIT. It adds 34 tokens to every session and 377 once invoked, about $0.0002 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 2026-09-04.
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