sidekick

A Claude Code mod in FynnXland/fynn-mods

Checks your message before it is sent, by rules and, where worthwhile, briefly with Haiku 5.5 (Sonnet 5.5 writes rewritten versions in level auto): a hint line under your message or a question (new chat with handoff, a skill, a clearer version, or "wrong chat?" when the message belongs to another project). Names due maintenance once per chat (/skill-doctor, prompt-audit, consolidate-memory, /init). With worklist installed, a long message with several tasks can be split into 3-4 to-dos, and /later plans text as to-dos. Five levels (off, cache, guide, plan, auto) with a colored label in the prompt footer. /savings shows cost and measurable savings at a glance, /savings detail compares the models over time. Optional, off by default (/sidekick notes on): while Claude works, a "good to know" note above the prompt when you likely missed something with consequences (one question to your main model over the conversation, every 6 steps). /sidekick help shows all commands and settings as a table.

sidekick reaches L2 (writes or runs) by its classified calls and passed claude plugin validate on Claude Code 2.1.302.

Events hooked: 7
API methods referenced: 25
Access from classified calls: L2, writes or runs: drives Claude, writes the prompt box, reads the transcript, persists state, draws
Unclassified calls: 3 ($.prompt.read, $.state.get, $.state.set), full access unknown
Static scan, not a runtime test

Install hint

/plugin install sidekick --marketplace FynnXland/fynn-mods

From the repository's own marketplace. Confirm the plugin name in the repository's README before installing. Mods need Claude Code 2.1.287 or later.

Access

L2 Writes or runsother: $.prompt.read, other: $.state.get, other: $.state.set, drives Claude, writes the prompt box, reads the transcript, persists state, draws

Validation

Passed on Claude Code 2.1.302

View the source on GitHub Back to the list

What the scan recorded

Observed events: Bash|PowerShell calls, every prompt, every skill
Hooks: session.start, turn.step, tool.call {tool=Bash|PowerShell}, prompt.submit, skill.prompt, ui.render {component=UserMessage}, ui.render {component=AbovePrompt}, command.run {command=sidekick}, command.run {command=later}, ui.render {component=SessionMode}, command.run {command=savings}, ui.render {component=CommandOutput, props has {command=savings}, ui.render {component=CommandOutput, props has {command=sidekick}
API calls: $.clock.every, $.clock.now, $.command.list, $.command.register, $.command.run, $.model.complete, $.model.fork, $.prompt.fill, $.prompt.read, $.prompt.submit, $.session.id, $.session.messages, $.session.root, $.session.surfaces, $.session.usage, $.state.get, $.state.set, $.store.delete, $.store.get, $.store.keys, $.store.set, $.ui.ask, $.ui.invalidate, $.ui.resolve, $.ui.toast
Validation on 2.1.302: Passed
Scanned revision: 4498aa6ce4b1
Marketplace passed: fynn-mods

These are the hooks and API calls reported by claude plugin validate. Access levels describe the widest reach of those calls and are not safety ratings. Validation is a static check, not a runtime test, and a passing result does not prove that a mod works or is safe. How the scan works.

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