Borrowing it
Nothing to install: this file belongs to rjwalters/kicad-tools. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/rjwalters/kicad-tools/main/CLAUDE.mdgit clone --depth 1 https://github.com/rjwalters/kicad-toolsWrote 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/instructions/rjwalters/kicad-tools/claude-md)<a href="https://agentmods.dev/instructions/rjwalters/kicad-tools/claude-md"><img src="https://agentmods.dev/badge/instructions/rjwalters/kicad-tools/claude-md/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/instructions/rjwalters/kicad-tools/claude-md"><img src="https://agentmods.dev/badge/instructions/rjwalters/kicad-tools/claude-md.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 | $0.02338 | $0.02338 |
| Opus 5.5 | $0.00935 | $0.00935 |
| Sonnet 5.5 | $0.00468 | $0.00468 |
| Haiku 4.5 | $0.00234 | $0.00234 |
Grade C, and why
kicad-tools CLAUDE.md scanned grade C with 1 finding 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 5d 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
anything else, `rm -rf .mypy_cache` and re-run **before** investigating. Never How it starts
The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Routing performance: build the C++ backend first
Before benchmarking routing latency or filing "router is slow" issues,
verify the C++ router extension (src/kicad_tools/router/router_cpp.*.so)
is built in the active worktree:
uv run kct build-native --check
# Expected: "C++ backend: available (version 1.0.0)"
If it reports "not installed", build it once:
uv run kct build-native
uv sync does not build the native extension — fresh checkouts and
new git worktrees (.loom/worktrees/issue-N/) need this step explicitly.
The C++ backend gives a 10-100x speedup for the A* loop, so a missing
extension is the most likely cause of multi-minute-per-net routing.
Rebuilding after editing C++ sources
kct build-native now detects staleness automatically: it compares the
newest mtime of src/kicad_tools/router/cpp/** (.cpp/.hpp and
CMakeLists.txt) against the installed .so and rebuilds when the
source is newer, even without a BUILD_VERSION bump. When the .so is
already up to date it prints SKIPPED rebuild instead of the old
misleading installed successfully!.
--force always recompiles regardless of mtimes — reach for it if you
suspect the auto-detection missed something (e.g. a touched build flag).
See README.md "Fresh worktree checklist" for the full setup sequence.
Native evidence: produce it on the pinned KiCad toolchain
Committed native DRC/ERC evidence (readiness-verification/**,
readiness.json, native-drc*.json) must not depend on the host's KiCad
config or release (issue #6962). Producers (kct readiness,
scripts/boards/*.py) run kicad-cli with a scratch KICAD_CONFIG_HOME holding
the pinned tables in src/kicad_tools/data/kicad-config/10.0/, and refuse
(exit 2, nothing written) a kicad-cli other than CI's image release, or a DRC
report with lib_footprint_issues. On a Mac with Homebrew KiCad, route
through the pinned image instead of fighting the refusal:
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.
- 5d ago Changed e368afacc7b4
- 9d ago Changed · +19 lines · +268 tokens per session 18b0f3e93dfa
- 10d ago Changed 826de0610a6d
- 11d ago Changed b56ad2c328c0
- 20d ago Changed · +5 lines · +56 tokens per session fa0d48219365
- 25d ago Changed 31d24d5998c6
- 26d ago Changed · +23 lines · +266 tokens per session 5c4840d5b689
- 28d ago Changed · +27 lines · +334 tokens per session 5e74aa69d541
- 1mo ago Changed · +24 lines · +311 tokens per session 25ff7c21014c
- 1mo ago First seen · 90 lines · 1,103 tokens per session scan C 996598d5c420
kicad-tools CLAUDE.md is an instructions file published in the GitHub repository rjwalters/kicad-tools (74 stars, last pushed yesterday), licensed MIT. It adds 2,338 tokens to every session, about $0.0094 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other instructions, from other repositories
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