cloud

A command that captures pages from Amazon Kindle Cloud Reader, a web browser version of Kindle, and turns them into OCR text and structured Markdown.

In plain words
What is it for?
Use it to capture a Kindle book by its ASIN, guide browser login, save page images, and continue the book-OCR pipeline.
Why use it?
It removes the need to capture and organise pages manually, while supporting different Amazon regions and page orientations.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/masterleopold/book-capture/cloud
Clone the repo
git clone --depth 1 https://github.com/masterleopold/book-capture
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 254 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00015 $0.00254
Opus 5 $0.00008 $0.00127
Sonnet 5 $0.00003 $0.00051
Haiku 4.5 $0.00002 $0.00025

Measured 2d ago against content hash 08c0176a520b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cloud 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 2d 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.

commands/cloud.md · 22 lines

What it actually says

Kindle Cloud Reader Capture

Source is pre-selected: cloud (Kindle Cloud Reader via Playwright browser automation).

Follow the full pipeline in ${CLAUDE_PLUGIN_ROOT}/commands/capture.md with source = cloud. Skip the platform selection step.

Cloud-specific notes:

  • Run capture in background
  • Guide user through Amazon login, then signal ready: touch /tmp/kindle-ready
  • --region flag: jp (default), us, uk, de, fr, it, es, ca, au, in, br
  • Playwright must be installed: cd "${CLAUDE_PLUGIN_ROOT}/scripts" && npx playwright install chromium
node "${CLAUDE_PLUGIN_ROOT}/scripts/kindle-capture.mjs" <ASIN> [--horizontal] [--region jp] --output-dir "<OUTPUT_DIR>"
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.

  1. 2d ago First seen · 22 lines · 15 tokens per session scan A 08c0176a520b

Subscribe to this mod's changes

cloud is a command published in the GitHub repository masterleopold/book-capture (10 stars, last pushed 1mo ago), licensed MIT. It adds 15 tokens to every session and 254 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 2026-08-31.