What is deepseekCLI CLAUDE.md?

Repository instructions describing a completed Chrome browser bridge for deepseekCLI, including its extension, native connection, and browser-control design.

Understanding how the Chrome extension, native host, browser bridge, and runtime backend selection fit together when maintaining or extending the project.

They preserve the project’s current state, important decisions, and test results so later work can continue without repeating the investigation.

How cynchro/deepseekCLI configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to cynchro/deepseekCLI. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/cynchro/deepseekCLI/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/cynchro/deepseekCLI

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/cynchro/deepseekcli/claude-md/github.svg)](https://agentmods.dev/instructions/cynchro/deepseekcli/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/cynchro/deepseekcli/claude-md"><img src="https://agentmods.dev/badge/instructions/cynchro/deepseekcli/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/cynchro/deepseekcli/claude-md"><img src="https://agentmods.dev/badge/instructions/cynchro/deepseekcli/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,728 This file is loaded in full into every session.

When invoked 1,728 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.01728	$0.01728
Opus 5.5	$0.00691	$0.00691
Sonnet 5.5	$0.00346	$0.00346
Haiku 4.5	$0.00173	$0.00173

Measured 2mo ago against content hash bf426f0d207d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

deepseekCLI 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 2mo 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.

CLAUDE.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Estado de sesión: extensión de Chrome como backend real del navegador

Tarea actual

El usuario preguntó si el proyecto tenía Playwright/Chrome, y la conversación derivó en: probar el auto-detect de CDP existente contra su Chrome real (falló: Chrome M136+ bloquea el puerto CDP remoto en el perfil default por seguridad) → investigar cómo lo resuelve la extensión oficial "Claude in Chrome" (permiso debugger + Native Messaging, no CDP-por-TCP) → diseñar (plan mode) y construir el mismo mecanismo para deepseekcli: chrome_bridge/ (extensión Manifest V3 + native host) + pwa/browser_bridge.py (puente sync↔async) + core/tools/browser.py con selección de backend en runtime.

Progreso

Completo y verificado end-to-end contra un Chrome real del usuario (no solo mocks/tests). Suite completa: 257 passed, 2 skipped.

chrome_bridge/ (nuevo paquete): extension/ (manifest.json MV3 con permiso debugger, key fija para ID reproducible — hgjekbbfnfopnhdgjgmmlncejahjbmcp —, background.js relay hacia chrome.debugger, íconos generados desde chinese.png), native_host.py (relay puro stdio↔WebSocket vía Native Messaging), install.py (detecta navegadores Chromium instalados y registra el manifest de Native Messaging Host + launcher ejecutable).
pwa/browser_bridge.py (nuevo): BrowserBridge, puente sync↔async — mismo patrón que SessionHub._pending_confirms (dict id -> (threading.Event, slot) + asyncio.run_coroutine_threadsafe). Endpoint nuevo /ws/browser-bridge en pwa/main.py.
core/tools/browser.py: refactor a _PlaywrightDriver/_ExtensionDriver detrás de _ensure_driver() — extensión conectada tiene prioridad; si no, cae a la cadena Playwright/CDP existente (DEEPSEEK_CDP_URL → puerto 9222 → Chromium propio visible). Los 8 nombres de tool no cambiaron. browser_click/browser_type muestran un cursor visual (punto rojo inyectado vía Runtime.evaluate, se desliza y pulsa) — aplica a ambos drivers.
deep browser install-extension [--port]: nuevo comando (cli/commands.py + subcomando en deep.py).
Documentación: README (sección "Navegador" + fila en la tabla de tools), doc/CHANGELOG.md, doc/arquitectura.md (sección 11.4).

Read the full file on GitHub · 98 lines

Changes

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.

2mo ago First seen · 98 lines · 1,728 tokens per session scan A bf426f0d207d

Subscribe to this mod's changes

deepseekCLI CLAUDE.md is an instructions file published in the GitHub repository cynchro/deepseekCLI (21 stars, last pushed 2mo ago), licensed MIT. It adds 1,728 tokens to every session, about $0.0069 per session on Opus 5.5. 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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deepseekCLI: Instructions file for Claude Code