benchmark-runner

benchmark-runner is a skill for Claude Code from nwiizo/ccswarm. It costs 18 tokens per session (195 once invoked), scanned A, original, MIT.

A tool for running Criterion performance benchmarks, which measure how quickly code runs and how its speed changes over time.

In plain words
What is it for?
Use it to benchmark all or selected workspace code, compare results with a saved baseline, and create flame graphs showing hotspots.
Why use it?
It helps identify slow parts of a Rust project and check whether changes make performance better or worse.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to benchmark all or selected workspace code, compare results with a saved baseline, and create flame graphs showing hotspots.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nwiizo/ccswarm/benchmark-runner
Install

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.

Any agent
npx skills add nwiizo/ccswarm --skill benchmark-runner
Clone the repo
git clone --depth 1 https://github.com/nwiizo/ccswarm

Made for: Claude Code.

Wrote 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.

agentmods badge for benchmark-runner

README.md
[![agentmods](https://agentmods.dev/badge/skills/nwiizo/ccswarm/benchmark-runner/github.svg)](https://agentmods.dev/skills/nwiizo/ccswarm/benchmark-runner)
Your own site
<a href="https://agentmods.dev/skills/nwiizo/ccswarm/benchmark-runner"><img src="https://agentmods.dev/badge/skills/nwiizo/ccswarm/benchmark-runner/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.

agentmods 80×15 button for benchmark-runner

Your own site · 80×15
<a href="https://agentmods.dev/skills/nwiizo/ccswarm/benchmark-runner"><img src="https://agentmods.dev/badge/skills/nwiizo/ccswarm/benchmark-runner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 195 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00018 $0.00195
Opus 5.5 $0.00007 $0.00078
Sonnet 5.5 $0.00004 $0.00039
Haiku 4.5 $0.00002 $0.00019

Measured 1mo ago against content hash edca66463928, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

benchmark-runner 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 1mo 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.

.agents/skills/benchmark-runner/SKILL.md · 43 lines

What it actually says

Run performance benchmarks on ccswarm.

Run Benchmarks

cargo build --release --workspace

# All benchmarks
cargo bench --workspace

# Specific benchmark
cargo bench -- "$ARGUMENTS"

# Save baseline for comparison
cargo bench -- --save-baseline before
# ... make changes ...
cargo bench -- --baseline before

Profile

cargo flamegraph --bench ${1:-orchestrator_bench}

Key Metrics

Area Target
Task delegation < 1ms
Full workflow < 100ms
Memory per agent < 10MB
Variance < 20%

Results in target/criterion/report/index.html.

Changes

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.

  1. 1mo ago First seen · 43 lines · 18 tokens per session scan A edca66463928

Subscribe to this mod's changes

benchmark-runner is a skill published in the GitHub repository nwiizo/ccswarm (153 stars, last pushed 8d ago), licensed MIT. It adds 18 tokens to every session and 195 once invoked, about $0.0001 per session on Opus 5.5. 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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