diff --git a/docs/codebase-summary.md b/docs/codebase-summary.md
index 4ef7fc7b..43fcb828 100644
--- a/docs/codebase-summary.md
+++ b/docs/codebase-summary.md
@@ -48,6 +48,7 @@ src/
 │   ├── config-command.ts     # Config management commands
 │   ├── config-image-analysis-command.ts  # Image analysis hook config (NEW v7.34)
 │   ├── doctor-command.ts     # Health diagnostics
+│   ├── env-command.ts        # Export shell env vars for third-party tools (v7.39)
 │   ├── help-command.ts       # Help text generation
 │   ├── install-command.ts    # Install/uninstall logic
 │   ├── shell-completion-command.ts
@@ -465,10 +466,12 @@ export type { ProviderEditorProps } from './provider-editor';
 
 ```
 tests/
-├── unit/                     # Unit tests (6 core test files)
+├── unit/                     # Unit tests (7 core test files)
 │   ├── data-aggregator.test.ts
 │   ├── cliproxy/
 │   │   └── remote-proxy-client.test.ts
+│   ├── commands/
+│   │   └── env-command.test.ts
 │   ├── jsonl-parser.test.ts
 │   ├── model-pricing.test.ts
 │   ├── unified-config.test.ts
@@ -487,12 +490,12 @@ tests/
 
 | Metric | Value |
 |--------|-------|
-| Total Tests | 1407 |
-| Passing | 1407 |
+| Total Tests | 1440 |
+| Passing | 1440 |
 | Skipped | 6 |
 | Failed | 0 |
 | Coverage Threshold | 90% |
-| Test Files | 40+ |
+| Test Files | 41 |
 
 ---
 
diff --git a/docs/project-overview-pdr.md b/docs/project-overview-pdr.md
index 2fd44000..30614026 100644
--- a/docs/project-overview-pdr.md
+++ b/docs/project-overview-pdr.md
@@ -115,6 +115,13 @@ CCS provides:
 - Entrypoint with privilege dropping and usage help
 - Environment variable configuration support
 
+### FR-011: Third-Party Tool Integration
+- Export shell-evaluable env vars via `ccs env` command
+- Support OpenAI, Anthropic, raw output formats
+- Auto-detect shell (bash/zsh, fish, PowerShell) from $SHELL
+- Security: single-quoted output, key sanitization, shell-specific escaping
+- Cross-platform compatibility (macOS, Linux, Windows)
+
 ---
 
 ## Non-Functional Requirements
@@ -192,7 +199,7 @@ CCS provides:
 | Startup time | < 100ms | Achieved |
 | Dashboard load | < 2s | Achieved |
 | Error rate | < 1% | Achieved |
-| Test coverage | > 90% | 90% (1407 tests, 6 skipped) |
+| Test coverage | > 90% | 90% (1440 tests, 6 skipped) |
 | File size compliance | 100% < 200 lines | 95% |
 
 ---
@@ -261,6 +268,16 @@ CCS provides:
 - [x] Quota 429 rate limit handling improvements
 - [x] WebSocket maxPayload limit (DoS prevention)
 
+### v7.39 Release (Complete)
+- [x] `ccs env` command for third-party tool integration (OpenCode, Cursor, Continue)
+- [x] Multi-format output: openai, anthropic, raw
+- [x] Multi-shell support: bash/zsh, fish, PowerShell (auto-detected)
+- [x] CLIProxy profile support (gemini, codex, agy, qwen)
+- [x] Settings profile support (glm, kimi, custom API)
+- [x] Security: single-quoted output, key sanitization, shell-specific escaping
+- [x] Shell completion updated (bash, zsh, fish, PowerShell)
+- [x] 33 unit tests for env command
+
 ### v8.0 Release (Planned - Q1 2026)
 - [ ] Multiple CLIProxyAPI instances (load balancing, failover)
 - [ ] Native git worktree support
diff --git a/docs/project-roadmap.md b/docs/project-roadmap.md
index 2aa857fc..7f257d11 100644
--- a/docs/project-roadmap.md
+++ b/docs/project-roadmap.md
@@ -26,13 +26,14 @@ All major modularization work is complete. The codebase evolved from monolithic
 | 12 | Hybrid Quota Management | `quota-manager.ts`, `quota-fetcher.ts` (v7.14) |
 | 13 | Docker Support | `docker/` directory with Dockerfile, Compose, entrypoint |
 | 14 | Image Analysis Hook | Vision proxying via CLIProxy transformers (v7.34) |
+| 15 | Third-Party Tool Integration | `ccs env` command with multi-format export (v7.39) |
 
 **Metrics Achieved**:
 - Files >500 lines: 12 -> 5 (-58%)
 - UI files >200 lines: 28 -> 8 (-71%)
 - Barrel exports: 5 -> 39 (+680%)
 - Test coverage: 0% -> 90%
-- Total tests: 1407 (6 skipped)
+- Total tests: 1440 (6 skipped)
 
 ---
 
@@ -170,6 +171,7 @@ worktrees:
 | Hybrid Quota Management | COMPLETE | v7.14 |
 | Docker Support (PR #345) | COMPLETE | v7.23 |
 | Image Analysis Hook | COMPLETE | v7.34 |
+| Third-Party Tool Integration | COMPLETE | v7.39 |
 | Critical Bug Fixes (#158, #155, #124) | PLANNED | Q1 2026 |
 | Multiple CLIProxyAPI Instances | PLANNED | Q1 2026 |
 | Git Worktree Support | PLANNED | Q2 2026 |
diff --git a/docs/system-architecture.md b/docs/system-architecture.md
index cca04f5b..10b55a2a 100644
--- a/docs/system-architecture.md
+++ b/docs/system-architecture.md
@@ -116,9 +116,10 @@ CCS v7.34 adds Image Analysis Hook for vision model proxying through CLIProxy wi
   |     commands/    |     |      auth/       |     |     config/      |
   |------------------|     |------------------|     |------------------|
   | doctor-command   |     | account-switcher |     | unified-config-  |
-  | help-command     |     | profile-detector |     |   loader         |
-  | install-command  |     | commands/        |     | migration-manager|
-  | sync-command     |     +------------------+     +------------------+
+  | env-command      |     | profile-detector |     |   loader         |
+  | help-command     |     | commands/        |     | migration-manager|
+  | install-command  |     +------------------+     +------------------+
+  | sync-command     |
   | update-command   |
   +------------------+
            |                       |                        |