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fix: phase 1 security for the hub, agent tools, pages and the extension - #375
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The Vite plugin and the Express hub checked requests in different ways, so a cross-site page or a rebinding host could reach the hub. Add one request gate in hub-gate.ts for both: it checks the loopback address, then Host, then Origin, and refuses a cross-site Sec-Fetch-Site when Origin is missing. Requests with neither header still pass, so curl and native apps keep working. Keep the Express hub off in production unless it is forced on, and warn when it is. Turn the one-time code and the MCP token on by default, and write the token to a file only the user can read instead of printing it. Local Vite now asks for the code and token (auth: false turns both off), and Express hubs reached over the LAN need allowLan: true. The security, Vite, Express, MCP server and Capacitor pages describe the new defaults and their opt-outs. Refs #340
…dOnly agent.readOnly kept some tools that change the page, such as highlight and record-pipes, and MCP clients got no hint about which tools write. Set one tier per tool (read, action or destructive) in AGENT_SAFETY in config.ts. Devframe sends the tiers to MCP clients as readOnlyHint and destructiveHint, and agent.readOnly now keeps only read tools. change-detection stays available as a read tool without its record option. List navigate under ACTION_TOOLS.router, and keep the documented exception for instrument and resolve-lazy in an explicit free-modes map. The MCP server, tools, CLI and configuration pages describe the tiers. Refs #340
Any connection could push to, ping or forget a pageId it did not own, so one tab or app could overwrite or drop another one's data. Route the push, ping and forget handlers of every inspector through one owner helper in page-owners.ts. A reloaded page or a native app that reconnects gets its own pageId back at once with its secret, or once the old connection has closed or gone quiet. Refuse NgRx writes without a page when they would go to every tab or to one the caller did not choose, and list the pages in the answer. Form actions were already scoped to one page by the form id. The tools and security pages and the coding standards describe the ownership rules. Refs #340 Refs #309
…all-api The extension injected content scripts into <all_urls> and ran a background worker only to detect Angular, which gave it access to every site. Remove both and detect Angular through chrome.devtools.inspectedWindow.eval, which needs no extra permission. Give the panel iframe a title so screen readers can name it. analog-call-api could fetch any URL on the dev server, including Vite file requests. Accept only API routes, /_analog URLs and app pages, and refuse /@fs, ?raw, project files and dot segments. The extension, Analog, tools and security pages and the privacy policy describe the change. Refs #340
devtools.attach(server) and the server option added the hub's own upgrade listener, so WebSocket upgrades on those servers skipped the loopback address and Host checks. A client on another machine that sent no Origin passed, with only the one-time code left. Wrap the listeners the hub adds in the same gate as handleUpgrade, for hub paths only, and route the server option through the gated attach. The Hono, h3 and Fastify page now says what each handler checks, that handler sees no peer address, how the hub behaves in production and what a 403 means. Refs #340
The result handlers for router, form, NgRx, component pick and signal peek requests settled a pending request for any connection that sent its requestId. Requests are broadcast to every client, so another tab or a stray client could answer for the page an agent asked. Keep the target pageId with each pending request and settle it only when the answer names that page and comes from the connection that owns it. The security page described every write without page as refused while more than one page could take it. Only dispatch-ngrx-action does that. Say so, and that navigate and other tools pick a page. The readOnly commit on this branch says readOnly kept highlight. It did not: highlight was an action tool and readOnly dropped it. This branch makes highlight a read tool, so readOnly now keeps it, and drops record-pipes and the record argument of change-detection. Refs #340
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info
📝 Walkthrough
Merge Risk: ⚪ Minimal · up to The change is mergeable after normal checks. Concurrent repair of an invalid token file remains a narrow edge case. Security Architecture Review
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| Docstring Coverage |  |
Docstring coverage is 39.73% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 73 functions across 38 files. (2 skipped:… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Linked Issues check For #309,createPageOwnersinpackages/devtools/src/rpc/page-owners.tscentralizes claim, write, forget, disconnect, and expiry rules ontrackPageSessions.devframe.tsuses this registry for p…Out of Scope Changes check The changes match the current PR intent: phase-1 hub and agent security, page ownership, extension injection changes, and Analog URL restrictions. The related tests and documentation support those cha… Description Check Check skipped - CodeRabbit’s high-level summary is enabled. Title check The title accurately summarizes the pull request's main security changes across the hub, agent tools, page ownership, and extension.
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Docstring coverage is 39.73% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 73 functions across 38 files. (2 skipped: 2 unsupported.)
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Inline comments:
Review comments at @apps/docs/src/content/guides/capacitor.md:
- Line 61: Update the Express hub entry in the summary table to include
allowLan: true alongside allowedOrigins, matching the Wi-Fi setup shown in
initPangularHub. Keep the existing table structure and other entries unchanged.
Review comments at @docs/privacy-policy.html:
- Line 44: Update the “Last updated” date in the privacy policy to the
publication date for this revision, keeping it consistent with the policy’s
promise to date revised versions.
Review comments at @packages/devtools/src/devframe.ts:
- Around line 1904-1913: In the `requestNgrxAction` flow, select the target page
from pages that report a classic Store when handling dispatch requests, so pages
with only signal stores do not affect the single-page check or page selection.
Keep restore requests’ existing page-selection behavior unless they also require
a classic Store.
Review comments at @packages/devtools/src/mcp-token.ts:
- Around line 45-47: Update the token-file creation flow around `writeFileSync`
to prevent concurrent processes from overwriting each other’s tokens. Write the
token to a temporary file in the same directory, then atomically create the
target without replacing an existing file; if another process wins, re-read and
return the existing token. Preserve the file’s restrictive permissions and clean
up the temporary file.
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📒 Files selected for processing (59)
AGENTS.mdapps/docs/src/content/agents/mcp-server.mdapps/docs/src/content/agents/tools.mdapps/docs/src/content/contributing/chrome-extension.mdapps/docs/src/content/contributing/development.mdapps/docs/src/content/getting-started/chrome-extension.mdapps/docs/src/content/getting-started/cli.mdapps/docs/src/content/getting-started/configuration.mdapps/docs/src/content/getting-started/express.mdapps/docs/src/content/getting-started/other-servers.mdapps/docs/src/content/getting-started/vite.mdapps/docs/src/content/guides/capacitor.mdapps/docs/src/content/inspectors/analog.mdapps/docs/src/content/security.mddocs/contributing/coding-standards.mddocs/privacy-policy.htmlextension/background.jsextension/content-script.jsextension/detect-angular.jsextension/devtools.jsextension/manifest.jsonextension/panel.htmlpackages/devtools/src/__tests__/analog-call-api-paths.test.tspackages/devtools/src/__tests__/component-agent.test.tspackages/devtools/src/__tests__/config.test.tspackages/devtools/src/__tests__/extension-devtools.test.tspackages/devtools/src/__tests__/extension-manifest.test.tspackages/devtools/src/__tests__/forms-mcp.test.tspackages/devtools/src/__tests__/hub-express-gate.test.tspackages/devtools/src/__tests__/hub-gate.test.tspackages/devtools/src/__tests__/hub.test.tspackages/devtools/src/__tests__/ngrx-mcp.test.tspackages/devtools/src/__tests__/overlay-angular-native.test.tspackages/devtools/src/__tests__/overlay-nativescript-session.test.tspackages/devtools/src/__tests__/overlay-page-key.test.tspackages/devtools/src/__tests__/page-owners.test.tspackages/devtools/src/__tests__/pipes-pages.test.tspackages/devtools/src/__tests__/router-mcp.test.tspackages/devtools/src/__tests__/test-env.tspackages/devtools/src/__tests__/untrusted-notice.test.tspackages/devtools/src/__tests__/vite-auth.test.tspackages/devtools/src/__tests__/vite-lan.test.tspackages/devtools/src/__tests__/vite-mcp-auth.test.tspackages/devtools/src/config.tspackages/devtools/src/devframe.tspackages/devtools/src/hub-gate.tspackages/devtools/src/hub.tspackages/devtools/src/mcp-token.tspackages/devtools/src/overlay-angular-native.tspackages/devtools/src/overlay-nativescript.tspackages/devtools/src/overlay.tspackages/devtools/src/page-id.tspackages/devtools/src/rpc/analog-register.tspackages/devtools/src/rpc/page-owners.tspackages/devtools/src/rpc/page-sessions.tspackages/devtools/src/rpc/pages.tspackages/devtools/src/vite.tspackages/devtools/vitest.config.tssrc/server.ts
💤 Files with no reviewable changes (4)
- extension/detect-angular.js
- extension/content-script.js
- extension/background.js
- extension/manifest.json
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…tore tab - mcp-token: create the token file with an exclusive link from a 0600 temp file; when another server wrote it first, keep and return its token - devframe: a dispatch, dispatch-again or back-to-latest request without pageId counts only tabs with an @ngrx/store Store; a restore still counts every tab, since it can target a signal store - docs: list allowLan for the Express hub in the Capacitor setup table, and date the privacy policy change Refs #375
This was referenced Oct 12, 2026
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What and why
The security items of phase 1 (#340), plus page ownership (#309). Closes #309. Refs #340.
Request gate (hub and Vite)
src/hub-gate.tsnow protects both the Vite plugin andinitPangularHub(): it checks the loopback address, thenHost(loopback,allowedHostsor an allowed origin's host), thenOrigin. WhenOriginis missing, a cross-siteSec-Fetch-Siteis refused. Clients that send neither (curl, native apps) still pass.nodeMiddleware,handleUpgrade,handler,attach(server)and theserveroption all go through the gate. A newallowLanoption (needs auth on) lets other machines in, andallowedOrigins: falseturns the gate off.enabledoption, defaulting toNODE_ENV !== 'production'. When off, the hub mounts nothing; forcing it on in production prints a warning. The demosrc/server.tsmounts the hub only when it is enabled.~/.pangular-inspector/mcp-tokenwith mode 0600 (orPANGULAR_MCP_TOKEN_FILE), reused across restarts, and only its path is printed.Agent tool safety tiers
AGENT_SAFETYinconfig.ts, and sent to MCP clients as read-only and destructive hints.agent.readOnlykeeps only read tools.change-detectionstays as a read tool withoutrecordunder readOnly.highlightis read;record-pipesand recording change detection are action;clear-recordingsandanalog-call-apiare destructive.ACTION_TOOLS.routerlistsnavigate; an explicit free-modes map keeps the documentedinstrumentandresolve-lazyexception.Page ownership (#309)
trackPageSessions, used by every inspector's push, ping and forget handlers. A reloaded page takes over itspageIdat once with a per-page secret kept insessionStorage(in memory for the native overlays); otherwise a new session takes over only when the old one has closed or gone quiet past the page expiry.dispatch-ngrx-actionwithoutpagenow refuses when more than one page has a Store and lists them. Form writes already carry a page-scoped form id.Extension and Analog
<all_urls>content scripts, including the MAIN-world one, are gone; the extension injects on demand. The panel iframe has atitle.analog-call-apiis limited to API routes,/_analogand page URLs, so it can't fetch/@fs/…or?raw.Breaking changes (documented with their opt-outs)
auth: falseturns both off.allowLan: true.enabled: true.Left open
devframe_state_read) is still blocked: the installeddevframeand@devframes/hub1.2.3 have noexposeSharedStateoption on the MCP route. Nothing changed for it.navigateand other tools still pick a page whenpageis left out; onlydispatch-ngrx-actionrefuses. The security docs say so.How it was verified
pnpm commit:checkpnpm format:checkpnpm typecheckpnpm test:devtools(2,000+ tests, new gate, token, tier and ownership tests) andpnpm test:panelpnpm docs:buildpassespnpm extension:buildleavesextension/uiunchangedNotes for reviewers
attach(server)and theserveroption, answers are owner-checked, and the other-servers page is updated).Summary by CodeRabbit