# `com.gocodebook/codes` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/com.gocodebook/codes
- JSON: https://anlyon.dev/api/v1/servers/com.gocodebook/codes
- Version: 1.0.0 (active)
- Publisher: com.gocodebook (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-10-21T17:55:59.157Z

Title and description, as the publisher wrote them:

```untrusted-server-text
GoCodebook — California Building Codes
Verbatim California Title 24 and local zoning code lookup by section number, with citations.
```

Scanned 2026-10-21T18:50:05.698Z over streamable-http.

**3 tools: 2 change things and 1 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 2 | ask |
| Only reads | read | 1 | allow |

## Findings

- **warn** Annotations that disagree with the tool in `lookup_california_code_section` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "lookup_california_code_section" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "lookup_california_code_section" says "lookup": a word for reading.
```

- **warn** Annotations that disagree with the tool in `search_california_codes` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "search_california_codes" as not read-only (readOnlyHint: false), and its words say it reads.

annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}; The name "search_california_codes" says "search": a word for reading.
```


## Changes things (2)

Creates or changes something that can be changed back. Claude Code: ask.

### `lookup_california_code_section`

- The name "lookup_california_code_section" says "lookup": a word for reading.
- The input takes a statement or command to run (input.code), which can change anything it can reach.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Look up the VERBATIM text of a California building, residential, fire, plumbing, mechanical, green (CALGreen), energy or existing-building code section, or a section of a California city or county zoning/municipal ordinance, by its section number. Use this whenever the user cites a section number ("CRC R602.10.2.3", "CBC 1004", "§ 17.60.090") or asks what a specific section says. Returns the official text with its citation, edition and a link to the full section. It returns code text only and does not determine whether a specific project complies.
```

### `search_california_codes`

- The name "search_california_codes" says "search": a word for reading.
- The server marks it as not read-only (readOnlyHint: false).
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Search California building codes (Title 24), state housing law and California city and county zoning/municipal codes by TOPIC, when the user does not already have a section number — e.g. "minimum attic access opening", "ADU setbacks in San Jose". Requires the user's GoCodebook account and uses 1 credit per search (also when nothing is found). If the user already cites a section number, use lookup_california_code_section instead — it is free. Returns ranked excerpts with citations and links. It does NOT decide whether a project complies.
```

## Only reads (1)

Looks things up and changes nothing. Claude Code: allow.

### `list_california_code_documents`

- The name "list_california_code_documents" says "list": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
List the California codes and local ordinances available for lookup, and what is not covered. Useful before concluding that a code is unavailable, and for finding the exact document or jurisdiction slug that a lookup takes.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `codes`:

```json
{
  "permissions": {
    "allow": [
      "mcp__codes__list_california_code_documents"
    ],
    "ask": [
      "mcp__codes__lookup_california_code_section",
      "mcp__codes__search_california_codes"
    ],
    "deny": []
  }
}
```