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.
git clone --depth 1 https://github.com/smithdak/claude-marketplaceWrote 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/agents/smithdak/claude-marketplace/implementation)<a href="https://agentmods.dev/agents/smithdak/claude-marketplace/implementation"><img src="https://agentmods.dev/badge/agents/smithdak/claude-marketplace/implementation/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/agents/smithdak/claude-marketplace/implementation"><img src="https://agentmods.dev/badge/agents/smithdak/claude-marketplace/implementation.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 | $0.00016 | $0.01665 |
| Opus 5.5 | $0.00006 | $0.00666 |
| Sonnet 5.5 | $0.00003 | $0.00333 |
| Haiku 4.5 | $0.00002 | $0.00167 |
Grade A, and why
optimizely-exp-implementation 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.
How it starts
The opening of the file, as written. The whole thing — 292 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Optimizely Implementation Agent
Analyze SDK implementation patterns, initialization, and configuration.
Analysis Areas
1. SDK Initialization
IMPL-001: SDK Initialized Without Datafile (Critical)
SDK must have datafile access:
Grep: createInstance\s*\(\s*\{(?!.*datafile)(?!.*sdkKey)
Bad Pattern:
// Missing datafile configuration!
const optimizely = optimizelySdk.createInstance({
// No sdkKey or datafile
});
Good Pattern:
const optimizely = optimizelySdk.createInstance({
sdkKey: process.env.OPTIMIZELY_SDK_KEY,
datafileOptions: {
autoUpdate: true,
updateInterval: 60000,
},
});
2. Blocking Initialization
IMPL-002: Blocking SDK Initialization (Critical)
SDK initialization should not block rendering:
Grep: await.*createInstance
Grep: \.then\(.*createInstance
Grep: optimizely.*=.*await
Bad Pattern:
// Blocks page load!
const optimizely = await optimizelySdk.createInstance({
sdkKey: SDK_KEY,
});
// Nothing renders until SDK is ready
Good Pattern:
// Non-blocking with ready handler
const optimizely = optimizelySdk.createInstance({
sdkKey: SDK_KEY,
});
optimizely.onReady().then(() => {
// SDK is ready, but page already rendered
});
Best Pattern (React):
<OptimizelyProvider
optimizely={optimizely}
timeout={500} // Max wait time
>
<App />
</OptimizelyProvider>
3. Error Handling
IMPL-003: No Error Handling for Decisions (Warning)
Decisions should have error handling:
Grep: decide\(.*\)(?!.*catch)
Grep: isFeatureEnabled\(.*\)(?!.*\?\?)
Bad Pattern:
// No error handling - will throw on SDK errors
const decision = optimizely.decide('feature_key');
const isEnabled = decision.enabled;
Good Pattern:
try {
const decision = optimizely.decide('feature_key');
return decision.enabled;
} catch (error) {
console.error('Optimizely decision error:', error);
return false; // Safe default
}
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.
- 1mo ago First seen · 292 lines · 16 tokens per session scan A 480f4832844e
optimizely-exp-implementation is an agent published in the GitHub repository smithdak/claude-marketplace (3 stars, last pushed 8mo ago), licensed MIT. It adds 16 tokens to every session and 1,665 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 2026-08-31.
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