feat: support all agent integrations on windows

[ogulcancelik]

Summary

• add native Windows integration assets for Cursor, Devin, Grok, and MastraCode
• enable Windows installation and detection for Cursor, Devin, Grok, MastraCode, and Hermes
• use Cursor’s unambiguous cursor-agent.cmd launcher and make Hermes session reporting cross-platform
• document Windows integration paths and scripts

Validation

• just check
• native Windows build and targeted integration tests
• live Windows smoke tests for Cursor, Grok, MastraCode, and Hermes

Devin was installed on the Windows VM, but its authenticated agent smoke test requires a Devin login.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: b2e101d8-c6ae-418b-82ac-0a65727fc163

📥 Commits

Reviewing files that changed from the base of the PR and between 29eeeff and 0fce2c8.

📒 Files selected for processing (5)

• docs/next/website/src/content/docs/integrations.mdx
• docs/next/website/src/content/docs/ja/integrations.mdx
• docs/next/website/src/content/docs/zh-cn/integrations.mdx
• src/integration/assets/hermes/__init__.py
• src/integration/mod.rs

🚧 Files skipped from review as they are similar to previous changes (4)

• docs/next/website/src/content/docs/ja/integrations.mdx
• src/integration/mod.rs
• docs/next/website/src/content/docs/zh-cn/integrations.mdx
• docs/next/website/src/content/docs/integrations.mdx

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📝 Walkthrough

Walkthrough

Native Windows support was added for Devin, Hermes, Cursor, MastraCode, and Grok. The changes add PowerShell hooks, platform-specific commands and executables, Hermes path resolution, subprocess reporting, detection updates, tests, and documentation.

Changes

Native Windows integrations

Layer / File(s)	Summary
Platform-specific agent detection and resume src/agent_resume.rs, src/detect/mod.rs	Cursor uses cursor-agent.cmd on Windows. MastraCode detection recognizes its Node package CLI path.
Hermes subprocess reporting and path resolution src/integration/assets/hermes/__init__.py, src/integration/env.rs, src/integration/registry.rs, scripts/test_hermes_integration_asset.py	Hermes reports sessions through the Herdr CLI, supports HERMES_HOME, resolves Windows defaults, and suppresses subprocess windows.
PowerShell hooks and installation wiring src/integration/assets/*/herdr-agent-state.ps1, src/integration/mod.rs, src/integration/registry.rs	Devin, Cursor, MastraCode, and Grok use Windows PowerShell assets and retain shell assets on other platforms.
Platform-aware hook commands and validation src/integration/targets.rs, src/integration/tests.rs	Hook installation and removal use platform-aware commands. MastraCode uses encoded PowerShell commands on Windows. Tests validate Windows support and generated commands.
Integration documentation docs/next/CHANGELOG.md, docs/next/website/src/content/docs/integrations.mdx, docs/next/website/src/content/docs/ja/integrations.mdx, docs/next/website/src/content/docs/zh-cn/integrations.mdx	Documentation describes Windows hook filenames and Hermes path defaults in three languages.

Estimated code review effort: 4 (Complex) | ~45 minutes

Sequence Diagram(s)

sequenceDiagram
  participant AgentCLI
  participant PowerShellHook
  participant HerdrCLI
  participant PaneState
  AgentCLI->>PowerShellHook: send session event JSON
  PowerShellHook->>HerdrCLI: report-agent-session with session metadata
  HerdrCLI->>PaneState: update active pane session
  PowerShellHook-->>AgentCLI: emit empty JSON response

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Possibly related PRs

• herdrdev/herdr#2223: Both PRs modify Hermes session reporting and related tests.
• herdrdev/herdr#2248: Both PRs modify shared integration infrastructure and tests.
• herdrdev/herdr#2343: Both PRs modify Hermes integration handling and installation paths.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: native support for all agent integrations on Windows.
Description check	✅ Passed	The description directly covers the Windows integration assets, detection, cross-platform behavior, documentation, and validation.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches 💡 1

📝 Generate docstrings 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/windows-integrations

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[coderabbitai]

Actionable comments posted: 2

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 1698632b-c7e9-4519-a4d5-f8849f5b88e9

📥 Commits

Reviewing files that changed from the base of the PR and between 7d77e92 and 4e54e2f.

📒 Files selected for processing (17)

• docs/next/CHANGELOG.md
• docs/next/website/src/content/docs/integrations.mdx
• docs/next/website/src/content/docs/ja/integrations.mdx
• docs/next/website/src/content/docs/zh-cn/integrations.mdx
• scripts/test_hermes_integration_asset.py
• src/agent_resume.rs
• src/detect/mod.rs
• src/integration/assets/cursor/herdr-agent-state.ps1
• src/integration/assets/devin/herdr-agent-state.ps1
• src/integration/assets/grok/herdr-agent-state.ps1
• src/integration/assets/hermes/__init__.py
• src/integration/assets/mastracode/herdr-agent-state.ps1
• src/integration/env.rs
• src/integration/mod.rs
• src/integration/registry.rs
• src/integration/targets.rs
• src/integration/tests.rs

[greptile-apps]

Greptile Summary

The PR adds native Windows support for Cursor, Devin, Grok, MastraCode, and Hermes integrations.

• Adds PowerShell hook assets and platform-specific installation commands.
• Enables Windows integration detection, installation, status checks, and agent restoration.
• Replaces Hermes socket reporting with a cross-platform Herdr CLI invocation.
• Bumps the Hermes integration version to ensure existing installations are detected as outdated and reinstalled.

Confidence Score: 5/5

The PR appears safe to merge.

The previously reported Hermes upgrade issue is fixed because both the installed asset marker and the integration registry constant are now version 5, so existing version 4 installations are classified as outdated; no blocking failure remains.

Important Files Changed

Filename	Overview
src/integration/assets/hermes/init.py	Replaces Unix-socket session reporting with a cross-platform argv-based Herdr CLI invocation and correctly advances the asset marker to version 5.
src/integration/mod.rs	Selects platform-specific integration assets and advances the Hermes registry version to 5, matching the installed asset.
src/integration/targets.rs	Generates platform-appropriate hook commands for Cursor, MastraCode, and Grok.
src/integration/env.rs	Injects the current Herdr executable path into panes and resolves the platform-specific Hermes home directory.
src/integration/registry.rs	Enables the new Windows integration targets and aligns Hermes availability detection with its resolved home directory.
src/integration/tests.rs	Updates integration coverage for Windows support, command generation, installation, and availability.
src/agent_resume.rs	Uses Cursor's unambiguous Windows command launcher when restoring sessions.
src/detect/mod.rs	Uses the Windows Cursor launcher and recognizes node-wrapped MastraCode processes.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  Pane[Herdr-managed pane] --> Env[Injected pane environment]
  Env --> Agent[Agent CLI]
  Agent --> Hook[Installed PowerShell or Python hook]
  Hook --> CLI[Herdr reporting CLI]
  CLI --> Server[Herdr server]
  Server --> State[Pane agent session/state]

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