morgankrey 5fb1e6d1a4 docs: Document configuration boundaries for external agents (#54759)
## Summary

- Add a new "Configuration Boundaries" section to the external agents
documentation explaining what settings are shared between Zed and ACP
agents
- Clarify bidirectional configuration story: what Zed forwards to agents
AND what agents inherit from native installations
- Add troubleshooting section for common user confusion points
- Update MCP docs with clearer cross-links

## Context

Users are confused about which Zed settings apply to external ACP agents
like Claude and Codex. Common questions:
- "I configured MCP in Zed but Claude can't see it"
- "My Codex config.toml isn't being used"
- "Do profiles apply to external agents?"

## Key Points

**What Zed forwards to ACP agents:**
- Model/mode selection, env vars, MCP servers (with limitations),
CLAUDE.md

**What's NOT forwarded:**
- Profiles, tool permissions settings, `.rules` files

**What agents DON'T inherit from native installations:**
- `~/.claude/` config, `~/.codex/config.toml`, native MCP servers,
authentication state

## Test plan

- [x] Review for technical accuracy against codebase
- [x] Check brand voice compliance

Release Notes:

- N/A
2026-04-24 15:04:03 +00:00
2026-04-06 12:51:13 +00:00
2026-01-22 23:57:26 +05:30
WIP
2023-12-14 09:25:14 -07:00
2026-02-03 20:31:02 -07:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2026-01-06 12:49:51 -08:00
2025-10-27 13:27:59 -04:00
2025-10-17 18:58:14 +00:00
2026-03-17 16:34:35 +00:00

Zed

Zed CI

Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


Installation

On macOS, Linux, and Windows you can download Zed directly or install Zed via your local package manager (macOS/Linux/Windows).

Other platforms are not yet available:

Developing Zed

Contributing

See CONTRIBUTING.md for ways you can contribute to Zed.

Also... we're hiring! Check out our jobs page for open roles.

Licensing

License information for third party dependencies must be correctly provided for CI to pass.

We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:

  • Is it showing a no license specified error for a crate you've created? If so, add publish = false under [package] in your crate's Cargo.toml.
  • Is the error failed to satisfy license requirements for a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to the accepted array in script/licenses/zed-licenses.toml.
  • Is cargo-about unable to find the license for a dependency? If so, add a clarification field at the end of script/licenses/zed-licenses.toml, as specified in the cargo-about book.

Sponsorship

Zed is developed by Zed Industries, Inc., a for-profit company.

If you’d like to financially support the project, you can do so via GitHub Sponsors. Sponsorships go directly to Zed Industries and are used as general company revenue. There are no perks or entitlements associated with sponsorship.

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