> ## Documentation Index
> Fetch the complete documentation index at: https://docs.plannotator.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Automate and Customize Plannotator

> Connect Plannotator to coding agents, customize feedback, run it from hooks, and add annotations from scripts and other tools.

<CardGroup cols={2}>
  <Card title="Choose your agent" icon="robot" href="/open-source/agents/" arrow="true">
    Follow the setup guide for Claude Code, Codex, OpenCode, Copilot CLI, Gemini CLI, and other supported tools.
  </Card>

  <Card title="Customize feedback" icon="message-pen" href="/open-source/reference/custom-feedback" arrow="true">
    Change the message Plannotator sends after plan review, document annotation, or code review.
  </Card>

  <Card title="Add external annotations" icon="comment-code" href="/open-source/reference/external-annotations" arrow="true">
    Send findings from linters, scripts, and other local tools into an open Plannotator session.
  </Card>

  <Card title="Run from hooks" icon="code" href="/open-source/reference/hooks" arrow="true">
    Call Plannotator from an agent or editor hook and return plain text or structured JSON.
  </Card>
</CardGroup>

## Choose the right guide

| If you want to                                    | Start here                                                                                                                            |
| ------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
| Use Plannotator with a coding agent               | [Choose your agent](/open-source/agents/)                                                                                             |
| Change the feedback sent to an agent              | [Customize feedback](/open-source/reference/custom-feedback)                                                                          |
| Add findings from a script, linter, or other tool | [Add external annotations](/open-source/reference/external-annotations)                                                               |
| Run Plannotator from a host hook                  | [Use automation hooks](/open-source/reference/hooks)                                                                                  |
| Build against the local session server            | [Read the local API reference](/open-source/reference/local-api)                                                                      |
| Change paths, ports, or runtime behavior          | [Check configuration](/open-source/reference/configuration) and [environment variables](/open-source/reference/environment-variables) |

Plannotator's local API has no authentication. Keep it on your computer or behind trusted port forwarding. Start with [external annotations](/open-source/reference/external-annotations) when another tool only needs to add findings to the current session.

Last verified against Plannotator OSS v0.23.1 on July 18, 2026. Maintained by the Plannotator project.