Tune the Agent Before You Build With It
Claude Code out of the box is capable. It's also happy to over-build, reread the same files all afternoon, stall on a rate limit, and improvise a process when it should be following one. Four free, open-source plugins fix those four things.
Ponytail — Write Less Code
Pushes the agent to code like the laziest senior dev in the room, on the principle that the best code is the code you never wrote. It reaches for the standard library and native platform features instead of pulling in a dependency and a wrapper — a native date input rather than a date-picker library. Less code written means fewer tokens spent.
OmniRoute — Don't Hit the Wall
A free AI gateway that connects Claude Code to a large roster of providers and models behind a single endpoint. When one model returns a rate limit, it falls back to another automatically so your session keeps moving, and it compresses prompts on the way through.
Graphify — Stop Rereading Everything
Builds your codebase into a local knowledge graph via AST parsing, so the agent queries a map of the structure instead of grepping and re-reading the same files on every question. Entirely local. (Not to be confused with the lead-magnet tool of the same name — this one is the codebase knowledge graph at github.com/safishamsi/graphify.)
Agent Skills — Follow a Real Process
Addy Osmani's curated set of agent skills that auto-trigger at the right moment, with dedicated workflows for planning, building, testing and deploying — so the agent follows a process instead of winging each phase.
What's in the Guide
What each plugin does, the repo link for all four, and the case for stacking them. The projects publish their own performance numbers — large reductions in code written and in tokens per query — and the guide is upfront that those are each tool's own benchmarks, so results will vary by project and model. All four are free and open source.
The full field guide is in the PDF.
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