Borrowing it
Nothing to install: this file belongs to llegomark/desmond. 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/llegomark/desmond/main/CLAUDE.mdgit clone --depth 1 https://github.com/llegomark/desmondWrote 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/llegomark/desmond/claude-md)<a href="https://agentmods.dev/instructions/llegomark/desmond/claude-md"><img src="https://agentmods.dev/badge/instructions/llegomark/desmond/claude-md.svg" alt="Measured on agentmods" 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 | $0.01567 | $0.01567 |
| Opus 5 | $0.00783 | $0.00783 |
| Sonnet 5 | $0.00313 | $0.00313 |
| Haiku 4.5 | $0.00157 | $0.00157 |
Grade A, and why
desmond CLAUDE.md 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
Desmond is a React-based AI chat application powered by Google's Gemini API. It's a sophisticated chat interface with support for multiple AI models, file uploads (PDFs and images), conversation management, and advanced features like code execution, image generation, and real-time web grounding.
Development Commands
Essential Commands
npm run dev- Start development server with HMRnpm run build- Type-check with TypeScript and build for productionnpm run lint- Run ESLint for code quality checksnpm run preview- Preview production build locally
Build Notes
- Uses rolldown-vite (not standard Vite) as specified in package.json overrides
- TypeScript compiler runs before build (
tsc -b) - Build output goes to
dist/directory (gitignored)
Architecture Overview
State Management Strategy
The app uses TanStack Query (React Query) for all state management, with a clear separation between:
- Query operations (
useQuery): Reading conversation data from localStorage - Mutation operations (
useMutation): Writing/updating conversation data with optimistic updates - Direct cache updates: Used only for high-frequency streaming updates (performance optimization)
Key mutations defined in App.tsx:
updateConversationsMutation- Saves conversations to localStorage with optimistic updates and rollback on errorsendMessageMutation- Handles message sending, streaming, and AI responsesgenerateTitleMutation- Auto-generates conversation titlesverifyApiKeyMutation- Validates user's Gemini API key
Gemini Integration (src/services/geminiService.ts)
Core service managing all Google Gemini API interactions:
- Client initialization with API key verification
- Session management with support for context caching (for large PDFs)
- Streaming responses with thoughts, code execution, web grounding, and sources
- Image generation using
gemini-2.5-flash-imagemodel - Prompt optimization and title generation utilities
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.
- 6d ago First seen · 160 lines · 1,567 tokens per session scan A 93c1d3ee9409
desmond CLAUDE.md is an instructions file published in the GitHub repository llegomark/desmond (1 stars, last pushed 9mo ago), licensed Apache-2.0. It adds 1,567 tokens to every session, about $0.0078 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 2026-08-31.
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