Add AGENTS.md

[pblazej]

Also adds https://github.com/AvdLee/Swift-Concurrency-Agent-Skill ⚔️

Summary by CodeRabbit

• Documentation
  • Added comprehensive documentation for the LiveKit Swift SDK, covering architecture, key components, dependencies, testing suites, and usage guidelines including concurrency, error handling, and code style conventions.

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[coderabbitai]

📝 Walkthrough

Walkthrough

A new comprehensive documentation file is added to describe the LiveKit Swift SDK architecture, key components, dependencies, testing suites, threading guidelines, error handling, coding conventions, and platform-specific considerations, without introducing any code or public API changes.

Changes

Cohort / File(s)	Summary
Documentation AGENTS.md	New 184-line documentation file covering SDK architecture, component overview (Room, Participant, SignalClient, Transport), testing approach, Swift conventions, concurrency/threading requirements, error handling patterns, style guidelines, SwiftUI considerations, and Objective-C support.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A rabbit hops through docs so bright,
With architecture laid just right,
Swift SDK paths are now laid bare,
Threading hints float through the air!
No code changed, just words so clear,
The architects rejoice with cheer! 🎉

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'Add AGENTS.md' clearly and accurately describes the main change: adding a new documentation file. It is concise, specific, and directly related to the changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[github-actions]

⚠️ This PR does not contain any files in the .changes directory.

[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@AGENTS.md`:
- Line 21: The fenced code block that shows the repository tree starting with
"Sources/LiveKit/" is missing a language tag; update the opening fence to
include a language (use `text`) so the block becomes ```text (leave the closing
``` as-is) to satisfy MD040 and markdownlint.

📜 Review details

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 4d6f3aa and 3e20bf8.

📒 Files selected for processing (1)

• AGENTS.md

🧰 Additional context used

🪛 markdownlint-cli2 (0.18.1)

AGENTS.md

21-21: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (21)

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• GitHub Check: lint (macos-15, 16.4)
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[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Add a language tag to the fenced block.

Markdownlint flags the fence at Line 21 as missing a language spec. Consider text to satisfy MD040.

✅ Proposed fix

-```
+```text
 Sources/LiveKit/
 ├── Core/                  # Room, SignalClient, Transport (WebRTC peer connections)
 ...
 └── Protos/                # Generated protobuf types (excluded from linting)
-```
+```

🧰 Tools

🪛 markdownlint-cli2 (0.18.1)

21-21: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

🤖 Prompt for AI Agents

In `@AGENTS.md` at line 21, The fenced code block that shows the repository tree
starting with "Sources/LiveKit/" is missing a language tag; update the opening
fence to include a language (use `text`) so the block becomes ```text (leave the
closing ``` as-is) to satisfy MD040 and markdownlint.

[pblazej]

@coderabbitai fix

[coderabbitai]

@pblazej, I'll fix the missing language tag in the fenced code block.

Task: Add language tag to fenced code block

• Update the opening fence at Line 21 to include text language identifier to satisfy MD040 markdownlint rule

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