Borrowing it
Nothing to install: this file belongs to baijum/ukulele-companion. 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/baijum/ukulele-companion/main/.claude/commands/extract-to-shared.mdgit clone --depth 1 https://github.com/baijum/ukulele-companionWrote 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/commands/baijum/ukulele-companion/extract-to-shared)<a href="https://agentmods.dev/commands/baijum/ukulele-companion/extract-to-shared"><img src="https://agentmods.dev/badge/commands/baijum/ukulele-companion/extract-to-shared/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/commands/baijum/ukulele-companion/extract-to-shared"><img src="https://agentmods.dev/badge/commands/baijum/ukulele-companion/extract-to-shared.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 | $0.00014 | $0.00447 |
| Opus 5 | $0.00007 | $0.00224 |
| Sonnet 5 | $0.00003 | $0.00089 |
| Haiku 4.5 | $0.00001 | $0.00045 |
Grade A, and why
extract-to-shared 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 12d 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.
What it actually says
Extract the following into the :shared KMP module: $ARGUMENTS
This is the project's most common refactor. Follow this order exactly — tests first, so behavior is pinned before the move:
- Locate the current logic and every caller (Android
app/, and the iOS equivalent iniosApp/if it was duplicated there). - Pin behavior first. Add or port unit tests into
shared/src/commonTest/that cover the current behavior. Run them green against the existing implementation if it's already reachable, otherwise write them to describe the intended contract. - Move the pure logic into
shared/src/commonMain/kotlin/com/baijum/ukufretboard/(domain/for business logic,data/for models/enums). It must be pure Kotlin: nojava.*,android.*,androidx.*, orplatform.*imports (enforced byscripts/hooks/guard-kmp-purity.py; seeshared/src/commonMain/CLAUDE.md). - Platform needs → expect/actual in the
platform/package, with Android impl inandroidMainand iOS impl iniosMain. - Keep callers working. Replace the original Android definition with a thin
shim /
typealiasif it's still referenced, then migrate callers. - Wire up iOS to consume the shared type (KMP Swift naming drops the
Sharedprefix, e.g.PitchDetector.shared). - Verify: run
scripts/preflight.sh. Build iOS separately (xcodebuild ... build) since preflight doesn't cover it.
Keep the change small and reviewable — one logical extraction per PR, matching the
existing Refactor: extract … into shared KMP module commit style.
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.
- 12d ago First seen · 33 lines · 14 tokens per session scan A 1d3d8c1d13a9
extract-to-shared is a command published in the GitHub repository baijum/ukulele-companion (14 stars, last pushed yesterday), licensed MIT. It adds 14 tokens to every session and 447 once invoked, about $0.0001 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.
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