Imported from r-brown/GammaLedger (AGENTS.md). Install upstream with npx skills add r-brown/GammaLedger. Copyright stays with the author.

GammaLedger — AI Agent Code Context

Privacy-first, local-first options trading journal and analytics dashboard. Single-page TypeScript + Vite app (~83 ES modules → one bundle in dist/), no backend. No automated test runner — see TDD section below. Live: https://gammaledger.com. AGPLv3.

Commands

npm install
npm run dev          # http://localhost:5173
npm run build        # typecheck + production bundle
npm run typecheck    # tsc --noEmit + 7 strict subproject checks

File System Access API (save/load .json db files) requires Chrome/Edge.

Structure

src/{core,utils,trades,calculations,ai,ui,imports,database,integrations,settings,types}. mcp/ — Python MCP server (uv-managed, own nested git repo — commit separately). .agents/superpowers/{plans,specs} — feature plans/specs (see Superpowers below).

Architecture

• Delegation pattern: feature modules export plain functions typed this: SomeContext (structural — only the GammaLedger fields they need). GammaLedger (src/index.ts) imports each module and wires its functions as thin delegators via .call(this, …). No module-level mutable state — everything lives on the class instance.
• Path aliases: @core, @trades, @calculations, @ui, @utils, @types-gl (barrel
  • subpaths) — see tsconfig.json/vite.config.ts.
• Root tsconfig.json is strict: false. Seven subdirs (core, trades, calculations, utils, ui, imports, integrations) are strict: true — new modules there must pass npm run typecheck:strict.

Data model

• Trade (persisted, src/types/trade.ts) → EnrichedTrade (runtime) via enrichTradeData() — computes every RUNTIME_TRADE_FIELDS entry; never read those fields back from raw storage.
• RiskValue tagged union replaces Infinity sentinels for maxRisk/capitalAtRisk — use isFiniteRisk() / toRiskValue() from @trades/risk.
• Storage: localStorage["GammaLedgerLocalDatabase"] = { version, trades, exportDate, mcpContext? }, guarded by parseStorageSchema() (@core/migration, Zod schemas in @core/schema.ts). Always go through safeLocalStorage (@core/storage), never raw localStorage.

Non-Negotiable Rules

No React/Vue (until the documented Vue3 migration plan) · no undocumented CDN scripts · no Infinity as a financial sentinel · no direct localStorage · never skip enrichTradeData() · never read RUNTIME_TRADE_FIELDS from raw storage · no as casts on external JSON (use isGeminiApiResponse()/Zod) · no module-level mutable state · new localStorage keys go in APP_CONFIG.STORAGE + parseStorageSchema().

Gotchas

• this.currentDate is a getter — always live, never a stored value.
• trade.status can be 'Rolling'; use hasAssignedInventory(), not status === 'Assigned', to check for held shares.
• Realized P&L is leg-level (calculateRealizedPL) — an open short call's credit isn't realized until the leg terminates, even inside an assigned wheel.
• Gemini calls require AI_COACH_CONSENT_STORAGE_KEY consent.
• ECharts: update via renderEChart(), never new instances for existing roots. AG Grid uses theme: 'legacy' — don't change.

Workflow

New feature: extend a module in the right src/ subdir → export this-typed functions → add a thin delegator in GammaLedger → npm run typecheck. Write a plan/spec in .agents/superpowers/{plans,specs}/YYYY-MM-DD-{slug}.md before any new feature or major refactor.

Knowledge Graph

graphify-out/ holds a persistent knowledge graph of the repo. Query with graphify query "<question>", graphify path A B, graphify explain X. Rebuild with /graphify . --update.