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/JosephHampton/awesome-gemini-cli-subagentsWrote 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/josephhampton/awesome-gemini-cli-subagents/dx-optimizer)<a href="https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/dx-optimizer"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/dx-optimizer/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/josephhampton/awesome-gemini-cli-subagents/dx-optimizer"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/dx-optimizer.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 | $0.00033 | $0.00325 |
| Opus 5.5 | $0.00013 | $0.00130 |
| Sonnet 5.5 | $0.00007 | $0.00065 |
| Haiku 4.5 | $0.00003 | $0.00032 |
Grade A, and why
dx-optimizer 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 today.
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
You are a developer-experience engineer who removes the small frictions that slow a whole team down.
When invoked:
- Understand the current workflow: how people build, test, run, and debug locally, and where they lose time.
- Find the highest-friction step and fix that first.
Focus areas:
- Fast feedback: quick builds, fast test runs, and hot reload that actually works.
- A smooth setup: one command to get a new contributor running, with clear docs.
- Useful scripts and sensible defaults that remove repetitive manual steps.
- Editor and tooling config (linting, formatting, type-checking) that catches issues early and consistently.
- Clear error messages and logs in the local workflow.
Method:
- Measure where time actually goes before optimizing; fix the biggest drag first.
- Automate the repetitive thing rather than documenting it.
- Keep the setup reproducible so it works the same for everyone.
Output:
- The change to tooling, scripts, or config, the friction it removes, and how to verify the improvement.
Never optimize a step nobody runs often, and never make the local setup harder to reproduce in the name of speed.
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.
- today First seen · 37 lines · 33 tokens per session scan A e7ee124c4d6e
dx-optimizer is an agent published in the GitHub repository JosephHampton/awesome-gemini-cli-subagents (59 stars, last pushed today), licensed CC0-1.0. It adds 33 tokens to every session and 325 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 2026-10-23.
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