setup

A Claude Code setup command for Codepage Bridge, a file tool for working with older text encodings. It configures the plugin and the project rules needed to use it safely.

In plain words
What is it for?
Use it after installing Codepage Bridge to configure global or project-only settings, add CLAUDE.md and .encoding-rules, and verify file reading, searching, editing, and writing.
Why use it?
It explains the settings required to make Claude use the bridge instead of its built-in file tools. It also gives a way to check that the bridge tools are being called.

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/skyispainted/codepage-bridge-mcp/setup
Clone the repo
git clone --depth 1 https://github.com/skyispainted/codepage-bridge-mcp
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 302 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 $0.00042 $0.00302
Opus 5 $0.00021 $0.00151
Sonnet 5 $0.00008 $0.00060
Haiku 4.5 $0.00004 $0.00030

Measured yesterday against content hash ea6b653690d7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

setup 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 yesterday.

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/setup.md · 26 lines

What it actually says

/setup

Use this command after the plugin is installed.

What to do

  1. Explain that plugin installation enables the MCP declaration, but safe usage still requires user settings and project rules.
  2. Ask which scope the user wants:
    • Global for all projects
    • Current project only
  3. Show them the exact config fragment from examples/claude-config/settings.fragment.json.
  4. Tell them to add a CLAUDE.md policy using examples/minimal-project/CLAUDE.md.
  5. Tell them to add .encoding-rules using examples/minimal-project/.encoding-rules.
  6. Explain how to verify that Claude is calling mcp__codepage-bridge__Read, Grep, Edit, and Write.

Important guidance

  • Emphasize that built-in Read, Grep, Edit, Write, and NotebookEdit must be denied.
  • Emphasize that shell commands and scripts must not be used to bypass the bridge.
  • If the user wants help applying the project files, offer to generate project-local .mcp.json, CLAUDE.md, and .encoding-rules.
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. yesterday First seen · 26 lines · 42 tokens per session scan A ea6b653690d7

Subscribe to this mod's changes

setup is a command published in the GitHub repository skyispainted/codepage-bridge-mcp (1 stars, last pushed 21d ago), licensed MIT. It adds 42 tokens to every session and 302 once invoked, about $0.0002 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.