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Set up Comity for Augment's Auggie CLI with native hooks, a workspace rule and the MCP server in your Augment settings.

On this page

Auggie CLI runs Comity's hooks on session start, tool calls (shell, file edits, writes, deletes), stop and session end. Comity's coordination instructions go into a workspace rule. The MCP server goes in your user Augment settings.

Set up

Terminal
cd your-repo
comity init --tools augment
git add .augment/hooks/comity.sh .augment/hooks/comity.cmd .augment/rules/comity.md
git commit -m "Set up Comity for Augment"

Keep .augment/settings.local.json out of git: it is personal and holds an absolute path. Every teammate runs comity init --tools augment in their own clone.

Then add the MCP server to your user settings (~/.augment/settings.json). It runs the stdio bridge, so there's no token: comity login is enough. comity init prints this entry:

JSON
{
  "mcpServers": {
    "comity": {
      "command": "node",
      "args": ["-e", "const c=require('child_process').spawn('comity '+process.argv.slice(1).join(' '),{stdio:'inherit',shell:true});c.on('error',()=>process.exit(1));c.on('exit',(k)=>process.exit(k===null?1:k))", "mcp"]
    }
  }
}

The node -e launcher runs comity mcp through your shell and works the same on every OS; Node must be on PATH. Augment documents MCP servers only in the user settings file (Integrations and MCP), so init doesn't write this into the repo.

What init writes

.augment/hooks/comity.sh and .augment/hooks/comity.cmd

Augment hook commands must be script paths ending in .sh, .ps1, .cmd or .bat (Augment hooks). Both launchers run comity hook --tool augment and exit 0 when the CLI isn't installed. The event comes from the payload's hook_event_name.

.augment/settings.local.json

Hooks pointing at this OS's launcher. Your own hooks in the file are kept.

Augment event Matcher Timeout (ms)
SessionStart 5000
PreToolUse launch-process|str-replace-editor|save-file|remove-files 5000
PostToolUse same 10000
Stop 10000
SessionEnd 10000

.augment/rules/comity.md

An always_apply workspace rule with Comity's coordination instructions.

What your agent sees

  • Session start: the briefing as additionalContext.
  • Before a shell command or file change: a block denies the call (permissionDecision: "deny") and the agent gets the reason.
  • After a tool call: new conflicts, messages and queued warnings as additionalContext.
  • Prompts: Augment has no prompt-submit event. Pre-tool warnings are queued and delivered after the next tool call.

Verify

Terminal
comity doctor

Expect augment hooks .augment/settings.local.json → .augment/hooks/comity launcher, augment mcp mcpServers.comity in ~/.augment/settings.json and augment rule .augment/rules/comity.md. In Auggie, /mcp should list comity.

Limits

  • .augment/settings.local.json is read only by Auggie CLI. The VS Code and JetBrains extensions read hooks only from system and user settings, so they get MCP and the rule but no hooks.
  • No prompt-time context; warnings arrive after the next tool call.