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Your agents, in Slack.

Mention the bot in a channel or message it directly, and a Claude Code or Codex run starts on your Mac once you approve it. The run reports back in its thread, from a sandbox that keeps it in its project. Your Mac connects out to Slack, so nothing listens for the internet.

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# atlas4 members

SL

Sam Lee9:12 AM

The CI cache hit rate dropped after the branch merge.

AD

Alex Doe9:41 AM

@Hansard Add the branch name to the CI cache key prefix in .github/workflows/ci.yml, then run the cache tests.

3 replies

Message #atlas

Thread# atlas

AD

Alex Doe9:41 AM

@Hansard Add the branch name to the CI cache key prefix in .github/workflows/ci.yml, then run the cache tests.

HansardAPP9:41 AM

Approve this run?Run request

You asked for this run.

Add the branch name to the CI cache key prefix in .github/workflows/ci.yml, then run the cache tests.

ProjectatlasAgentCodexPermission modeworkspace-write

Full prompt

Add the branch name to the CI cache key prefix in .github/workflows/ci.yml, then run the cache tests.

✅Approvedby Alex Doe9:42 AM

Approving starts the agent with these settings. Only the owner's click counts, and the request expires in 15 minutes.

HansardAPP9:42 AM

⏳ Working Replies appear in this thread.⏳ Working for 1m 12s. Running a command.✅ Done in 2m 4s.

CodexDefault modelatlas

Stop

HansardAPP9:44 AM

The CI cache key now starts with the branch name, so two branches no longer share an entry. The cache tests pass: 18 passed, 0 failed.

CodexDefault model

Approve each action from the thread.

When a run asks to run a command or change files, Slack shows exactly what it asks, with Approve once and Deny. Only your click counts, and a request expires after 15 minutes.

Approvals in Slack

HansardAPP9:43 AM

Allow this action?Permission request

The agent in atlas asks to run a command.

npm test -- --grep cache

Folder~/projects/atlas

Exact request

{
  "approval_type": "command",
  "data": {
    "command": "npm test -- --grep cache",
    "cwd": "~/projects/atlas"
  }
}

✅Approved onceby Alex Doe9:43 AM

Approve once allows this one action. Deny refuses it. Only the owner's click counts.

Runs stay in their project.

Every run gets a macOS sandbox that writes only to its project. It can't read Hansard's archive, your Slack credentials, or other folders. A teammate's run also gets a disposable home, without your instructions, memories, or plugins.

Who can start runs

Codex in atlasmacOS sandbox

Can write

atlasThe project

Run folderIts own runtime files

Cannot read

Hansard's archive

Slack credentials

Other folders

Keychain

localhost

Your CLAUDE.md and AGENTS.md

Your memories

Your hooks, MCP servers, and plugins

Runs with the permission mode you chose for the project.A disposable home, removed 15 minutes after the last reply.

Message the agents already running.

Turn on Agents on this Mac, and a direct message reaches the agents in Running: agents lists them, and agent:1 sends your words to the first. They keep their own permissions, outside the sandbox.

Prompts from Slack

HansardDirect message

AD

Alex Doe10:02 AM

agents

HansardAPP10:02 AM

Agents on this Mac:1. Claude Code in relay, waiting: Review the worker shutdown path2. Codex in atlas, working: Version the cache keys3. Cursor in harbor, paused: Stream parser cleanupSend agent:<number> and your words to message one. A paused agent resumes first.

AD

Alex Doe10:03 AM

agent:1 Run the shutdown tests again before you push.

HansardAPP10:03 AM

Sent to Claude Code in relay. Its next complete reply appears in this thread.

HansardAPP10:05 AM

Ran the shutdown tests again: 12 passed. Pushed the branch.

A digest, and a watcher that suggests work.

A channel can post a digest of its project's conversations by title, or have a watcher suggest tasks. A suggestion starts nothing until you approve it.

Channel roles

# atlas

HansardAPP9:00 AM

atlas digest

6 conversations since the last digest.

  • Version the cache keys
  • Cache key collision in CI
  • Bound retry backoff
  • Schema migration dry run
  • Document the recovery workflow
  • Trace a flaky login test

Titles onlyOpen Hansard on the Mac to read them

HansardAPP9:15 AM

Approve this run?

The channel watcher suggests this task.

Add a test for the CI cache key prefix so a branch rename cannot share entries again.

ProjectatlasAgentClaude CodePermission modeplan

Approve and runDeny

Approving starts the agent with these settings. Only the owner's click counts, and the request expires in 15 minutes.

Until a request expires
15 min
Run requests and approvals expire if nobody answers.
Person who approves
1
Only your click starts a run or allows an action on your Mac.
Runs at once
2
The default for people on a channel's default access.
Runs per person each day
10
The default for people you let start runs.

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