zed-industries / zed

GitHub

Code

How zed-industries/zed is laid out, and where to start for common changes.

Architecture grade

score 100/100

Import cycles

lower is better

105

Files mapped

37 imports between them

100%

Layering

of imports point one way

From the map of which files import which, built when the code was last read in full. It shows what depends on what, not a reading order.

Module map

Shade by

14 modules, 0 links. A link means one module imports another; thicker lines mean more imports. Links come from 105 of 1,988 source files, so the real counts are higher. Select a module to trace it: blue lines go to what it uses, orange lines come from what uses it.

Where to start reading

Repository root
Repository root
Suggested starting pointAI
Suggested starting pointAI
Suggested starting pointAI
Suggested starting pointAI
Suggested starting pointAI
Suggested starting pointAI

Find files for a task

Add a New Language Server Integration

Add language-specific configuration in assets/settings/default.json

Add a New AI LLM Provider

Create provider crate (e.g., crates/ollama/Cargo.toml) implementing the LlmProvider trait
Add configuration schema to settings allowing API key and model selection

Add a New Editor Command/Action

Bind command to keystroke in default keymap

Add a New UI Panel or Sidebar Tab

Add default settings and keybinding to show/hide panel

Add or update tests

Change build or automation

RepoPilot lists up to 500 files, so a file missing here may still exist.

No public API or start-up file could be picked out from the file names.
The file list is newer than the written guide, so descriptions and suggested changes may describe older code.

Code quality and hotspots

Largest source files

Branch points6 per file on average
Code issues0 errors, 5 warnings
Largest file4,380 lines
Hotspot load1 high-risk file

Static checks on the 15 largest source files.

Tests, CI and tooling

CIGitHub Actions49 workflows
Tests109 test filesRust test · Pytest · 0.05 test files per source file (file count, not coverage)
Dependency updatesNo config detected

Test folders: crates/collab/tests/integration · crates/debugger_ui/src/tests · crates/collab/tests/integration/db_tests

Hotspots

crates/extension_host/src/extension_store_test.rs14 commits in 180 days · 19 branch points
crates/scheduler/src/test_scheduler.rs6 commits in 180 days · 26 branch points
crates/gpui/src/app/test_context.rs15 commits in 180 days · 4 branch points
crates/livekit_client/examples/test_app.rs2 commits in 180 days · 6 branch points
extensions/test-extension/src/test_extension.rs1 commit in 180 days · 12 branch points
crates/agent_ui/src/test_support.rs8 commits in 180 days · 1 branch point
crates/gpui_web/examples/hello_web/font_fallback_test.rs2 commits in 180 days · 4 branch points
crates/gpui/src/platform/visual_test.rs7 commits in 180 days · 1 branch point

Files that change often and branch heavily, highest first. Branch points count if, loop, case, catch, ternary, && and || in the file.