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 reatlat/fullstory-claude-plugin --skill benchmark-analyzergit clone --depth 1 https://github.com/reatlat/fullstory-claude-pluginWrote 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/reatlat/fullstory-claude-plugin/benchmark-analyzer)<a href="https://agentmods.dev/skills/reatlat/fullstory-claude-plugin/benchmark-analyzer"><img src="https://agentmods.dev/badge/skills/reatlat/fullstory-claude-plugin/benchmark-analyzer/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/reatlat/fullstory-claude-plugin/benchmark-analyzer"><img src="https://agentmods.dev/badge/skills/reatlat/fullstory-claude-plugin/benchmark-analyzer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00043 | $0.01390 |
| Opus 5 | $0.00022 | $0.00695 |
| Sonnet 5 | $0.00009 | $0.00278 |
| Haiku 4.5 | $0.00004 | $0.00139 |
Grade A, and why
benchmark-analyzer 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 10d 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 — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Benchmark Analyzer
Establish baselines, set targets, and track progress — turn raw metrics into benchmarks you can measure against.
When to Use
- "What's our baseline conversion rate?"
- "Set a target for checkout completion — and track us against it"
- "How does this quarter compare to Q2?"
- "Are we on track to hit our retention target?"
- "What's a good rage-click rate? Are we above or below average?"
- "Benchmark our error rate against industry standards"
Mental Model
A metric without context is just a number. A benchmark gives it context:
- Internal baseline: What's normal for us? (12-month average, last quarter's average)
- Target: Where do we want to be? (goal set by the team, industry standard)
- Comparison: How do we compare? (to ourselves over time, to peers if data available)
Workflow
Step 1: Define what to benchmark
Ask the user:
- "What metrics matter most?" (conversion, retention, error rate, etc.)
- "What time period should be the baseline?" (last quarter, last 12 months, since launch)
- "Do you have specific targets, or do you want me to suggest them?"
Step 2: Compute the baseline
For each metric, compute over the baseline period:
fullstory:build_metric(query="checkout conversion rate", output_type="single_number")
fullstory:compute_metric(metric_id, time_range="last_12_months")
→ Baseline: 19.8% (12-month average)
Also compute the standard deviation or range:
fullstory:build_metric(query="checkout conversion rate", output_type="trend")
fullstory:compute_metric(metric_id, time_range="last_12_months")
→ Range: 16% - 24%, typical weekly variance: ±3pp
Step 3: Compare current to baseline
Current (last 30 days): 21.2%
Baseline (12-month avg): 19.8%
→ +1.4pp above baseline (+7%)
→ Within normal range (baseline range: 16-24%) ✅
Step 4: Set targets
Based on the baseline, suggest targets:
- Conservative (achievable): 21-22% (slightly above baseline)
- Ambitious (stretch): 23-24% (top of historical range)
- Moonshot (breakthrough): 25%+ (above historical max)
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.
- 10d ago First seen · 142 lines · 43 tokens per session scan A f454ae9aa865
benchmark-analyzer is a skill published in the GitHub repository reatlat/fullstory-claude-plugin (62 stars, last pushed 27d ago), licensed MIT. It adds 43 tokens to every session and 1,390 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 2026-08-30.
Other skills, from other repositories
roblox-input
Use when handling Roblox keyboard, mouse, gamepad, touch, motion input, or cross-platform action binding.
roblox-lighting
Use for Roblox lighting, atmosphere, day/night, or post-processing effects.
roblox-performance
Use when profiling Roblox performance or diagnosing FPS, memory, network, mobile, or hot-path problems.
roblox-growth-design
Use for growth diagnosis, discovery, retention, onboarding, experiments, LiveOps, and packaging.
roblox-data
Use when implementing player data persistence with DataStore, session ownership, schemas, migrations, or save and load flows.
roblox-networking
Use when validating RemoteEvent or RemoteFunction arguments, adding rate limits, designing server-authoritative systems, or preventing exploits.