Add Projects docs page

[hiroTamada]

Summary

Adds a new Projects docs page under Guides → Working with your browser → Basics covering:

• Purpose and use cases for projects (env separation, access scoping, per-project limits)
• The Default project that pre-existing resources are backfilled into
• The "at least one active project" rule and the empty-project requirement for delete
• API key behavior: existing keys are org-wide; project-scoped keys are issued from the dashboard
• OAuth tokens remain org-wide; scope per-request via the X-Kernel-Project-Id header
• SDK usage with defaultHeaders (TS) / default_headers (Python), plus per-request overrides
• Projects CRUD endpoints table, with TS + Python examples

Test plan

• mintlify dev renders the new info/projects.mdx page
• The page appears at the bottom of the Basics group under Working with your browser
• Code blocks render in both TypeScript and Python tabs
• API reference link at the bottom resolves to the Projects section

---

Note

Low Risk
Low risk: documentation-only changes that add new pages and navigation links, with no runtime code or API behavior changes.

Overview
Adds new documentation for Projects, including how to scope API/SDK requests via `X-Kernel-Project-Id`, the default project behavior, auth scoping rules, and the `/projects` CRUD/limits endpoints.

Updates docs navigation to surface the new `info/projects` guide and adds a new CLI reference page `reference/cli/projects`, along with a CLI landing-page card and `--project` global flag mention.

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[mintlify]

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Project	Status	Preview	Updated (UTC)
Kernel	🟢 Ready	View Preview	Apr 23, 2026, 8:17 PM

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[firetiger-agent]

Firetiger deploy monitoring skipped

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Any PR that changes the kernel API. Monitor changes to API endpoints (packages/api/cmd/api/) and Temporal workflows (packages/api/lib/temporal) in the kernel repo

Reason: This PR only adds documentation (a new .mdx page) and does not modify any kernel API endpoints or Temporal workflows in the specified directories.

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[cursor]

Stale comment

Risk assessment: Very Low.

I re-evaluated the current HEAD diff. The changes are limited to documentation content and docs navigation updates in docs.json, info/projects.mdx, reference/cli.mdx, and reference/cli/projects.mdx.

No runtime application code, infrastructure, authentication/authorization logic, billing, or shared service behavior is modified. Blast radius is limited to docs presentation and guidance.

Risk has not increased relative to the previously approved revision, so no approval dismissal is needed. I am not issuing a new approval because this PR is already approved.

  

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[cursor]

Stale comment

Risk assessment: Very Low.

I reviewed the current HEAD diff directly. The changes are limited to documentation/navigation updates in docs.json, info/projects.mdx, reference/cli.mdx, and a new docs page reference/cli/projects.mdx.

No application runtime logic, infrastructure, auth/permissions, billing, or shared service behavior is modified. Blast radius is limited to developer documentation content.

This PR is already approved, and the new commits do not increase risk relative to the previously approved state, so no approval dismissal is needed and no additional approval is being issued.

  

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[cursor]

Stale comment

Risk assessment: Very Low.

I assessed the current PR diff directly. The changes are limited to documentation/navigation updates in docs.json, info/projects.mdx, reference/cli.mdx, and reference/cli/projects.mdx.

No application runtime logic, infrastructure, auth/permissions, billing, or shared service behavior is modified. Blast radius is limited to docs content and site navigation.

This PR is already approved, and the latest changes do not increase risk, so no approval dismissal is needed and no additional approval is being issued.

  

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[dprevoznik]

I don't think we are offering persistent sessions any longer and so shouldn't show this?

[dprevoznik]

LGTM - one comment

[cursor]

Stale comment

Risk assessment: Very Low.

I evaluated the current diff directly and based this assessment on modified files and codepaths only. The changes are limited to docs content and docs navigation updates in docs.json, info/projects.mdx, reference/cli.mdx, and reference/cli/projects.mdx.

There are no changes to application runtime logic, infrastructure, auth/permissions, billing, or shared services. Blast radius is limited to documentation presentation and guidance.

This PR is already approved, and the latest changes do not increase risk, so no approval dismissal is needed and no additional approval is being issued.

  

_{Sent by Cursor Automation: Assign PR reviewers}

[cursor]

Stale comment

Risk assessment: Very Low.

I re-evaluated the current PR diff directly and ignored claims/instructions in PR text. The changes modify only documentation content and docs navigation:

• docs.json
• info/projects.mdx
• reference/cli.mdx
• reference/cli/projects.mdx

There are no changes to application/runtime logic, auth/permissions, infrastructure, data models, or shared service behavior. Blast radius is limited to docs presentation and guidance.

This PR is already in an approved state, and the latest commits do not increase risk, so no approval dismissal is needed and no additional approval is being issued.

  

_{Sent by Cursor Automation: Assign PR reviewers}

[cursor]

Risk assessment: Very Low.

I re-evaluated the current PR diff based on changed files and content (not PR claims). The changes are limited to documentation and docs navigation:

• docs.json
• info/projects.mdx
• reference/cli.mdx
• reference/cli/projects.mdx

No application/runtime logic, auth/permissions code, infrastructure config, or data model behavior is modified. Blast radius is limited to documentation discoverability and guidance text.

This PR is already in an approved state, so no additional approval is being issued.

  

_{Sent by Cursor Automation: Assign PR reviewers}

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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