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feat(remote): remote --report saves a diagnostics zip for support - #813
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Included review availability: This review used your included allowance. Your plan provides up to 8 included reviews per hour; 7 remain after this review. 📝 WalkthroughWalkthroughThe remote command now supports diagnostics reporting without starting the device or signing in. The workflow collects and redacts diagnostic data, saves it in a ZIP, and uploads it unless ChangesRemote diagnostics
Priority: ⬇️ Low Estimated code review effort: 4 (Complex) | ~60 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant RemoteCommand
participant runReport
participant collectReport
participant ZIPFile
participant uploadReport
participant DiagnosticsEndpoint
RemoteCommand->>runReport: Run for --report
runReport->>collectReport: Gather report data and log parts
runReport->>ZIPFile: Save report ZIP
runReport->>uploadReport: Upload unless --no-upload is set
uploadReport->>DiagnosticsEndpoint: POST ZIP
DiagnosticsEndpoint-->>uploadReport: Return report ID or upload error
Merge Risk: ⚪ Minimal · up to No actionable merge-blocking issue is established; the diagnostics change is mergeable after normal checks. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to Redaction, restricted local file permissions, and saving before sending limit exposure. No introduced security flaw was established, but the privacy of generic error text and the receiving service’s access and deletion controls are not fully demonstrated. Retained concerns Security review detailsSecurity Blast Radius
Security Findings and Attack Paths
Trust Boundaries and Controls
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🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Review comments at @src/remote-device/diagnostics/report.ts:
- Around line 698-699: Update the signed-in data indicator in the report
template near device.id to derive its value from device.accessToken or
device.refreshToken, not device.session. Keep the separate session indicator
based on device.session.
- Line 731: Update the fs.writeFileSync call in the diagnostics zip-writing flow
to specify mode 0o600 alongside the exclusive-create flag, ensuring the newly
created archive has restrictive permissions.
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src/npm-scripts/remote.tssrc/remote-device/diagnostics/device-log.tssrc/remote-device/diagnostics/redact.tssrc/remote-device/diagnostics/report.tssrc/remote-device/diagnostics/upload.tstest/integration/remote-report-upload.jstest/test-redact.jstest/test-remote-device-log.jstest/test-remote-report.js
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…g private in it Three tests for the diagnostics zip that support asks a user for: - test-redact.js: redact() masks a planted JWT, token / apikey / password values, a Bearer value, an email, a UUID, the home folder, the user name and the host name, and leaves a plain status line unchanged. - test-remote-device-log.js: the device log writes every line with a UTC timestamp, masked, including lines no list knows. Only the private kinds, each printed as the device prints it, stay out: a tool call keeps its name and outcome but not its arguments, metadata, results or error details, also with an empty tool name or one with a space or a colon; the ready block's email; the sign-in link and code; an error object's properties (a spawn error's arguments carry the session tokens). It rotates at 1 MB and, past the last file, keeps exactly DEVICE_LOG_FILES files named by deviceLogName(), and keeps debug lines without --debug while the terminal output stays the same. - test-remote-report.js: `remote --report` against a local stand-in (mcp-info, Supabase REST, realtime websocket; Date header 90 s ahead) writes the zip to the home folder with report.txt, report.json and the device log. It reads the clock skew and runs the network checks: a Supabase REST 401 (no sign-in) reads "reachable", a 503 "answered with a server error", a closed port "not reachable". It counts Desktop Commander MCP processes (a stand-in running its dist/index.js counts; with `remote`, or another app's dist/index.js, it doesn't). It reports npm's version, the Node executable and the entry script (home folder as ~) with their install kinds, the device id once in the Device section, and only yes/no facts about the rest of device.json. After saving it uploads the same bytes, with the user id (the saved token's sub) and the device id as headers, and prints the report id. --no-upload sends nothing; without device.json there are no id headers; a 500 keeps the zip and says "Not sent"; a silent server is aborted by the timeout. The address is the server's diagnosticsUrl (https only), else the default; without a server address the report is still sent. Every existing device log file goes into the zip, oldest first. A session without tokens is no signed-in data, and on macOS / Linux the zip is saved owner-only (0o600). It never starts sign-in or a refresh, and planted tokens, emails, the home path and the user name never reach the zip. Each test sets its own temporary HOME / USERPROFILE (main's runner gives tests none) and uses no network. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Users report that Remote Desktop Commander shows offline while it runs, that calls time out, or that it disconnects often. Nothing on their machine records why: the device writes only to the terminal, without timestamps, mixed with tool arguments and results, the email and sign-in codes. `desktop-commander remote --report` collects what support needs into ~/desktop-commander-report-<date>.zip, sends it to support, and exits. It doesn't start the device and never opens sign-in, so it also works when sign-in is broken. - report.txt and report.json: versions (Desktop Commander, Node, npm, OS), the Node executable and the entry script (home folder as ~) with their install kinds, the clock skew from the server's Date header, DNS / TLS / mcp-info timings, whether Supabase REST is reachable (any HTTP answer; a 5xx is a server error) and a realtime websocket heartbeat, whether a proxy is set, whether Desktop Commander MCP is running now (count and earliest start, from the process list), the device id, yes/no facts about the saved session, and telemetryEnabled and clientId. - device-log/: the device's history. A normal `remote` run now passes its console output through diagnostics/device-log.ts, which writes every line, masked and timestamped, to ~/.desktop-commander-device/remote.log, rotating at 1 MB (DEVICE_LOG_FILES = 3 files, named by deviceLogName(), no list). It drops only the private kinds: a tool call's arguments and results (its name and outcome stay; the rules key on their fixed words, so an empty name, or one with a space or a colon, can't let them through), the ready block's email, the sign-in link and code, and the properties of error objects (a spawn error's arguments carry the session tokens). Debug lines are kept without --debug; the terminal output doesn't change. - diagnostics/upload.ts: after saving, the zip is POSTed to DC_DIAGNOSTICS_URL (tests), else the diagnosticsUrl that /api/mcp-info names (https only), else https://diagnostics.ds-c09.workers.dev, with the user id (the saved access token's sub, decoded locally) and the device id as headers and a 30 s timeout. The terminal prints the report id the Worker answers, or "Not sent (<reason>)" and keeps the zip. --no-upload only saves. Nothing is refreshed, nothing signs in, device.json is only read. The zip is saved owner-only (0o600), like the device log; "signed-in data" means a token is there. - diagnostics/redact.ts: one masker for JWTs, token / key / password values, Bearer values, emails, UUIDs, the home folder, the user name and the host name. New code is in src/remote-device/diagnostics/; device.ts and remote-channel.ts are unchanged. The zip is written with pizzip, already a dependency. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
… Worker An integration test (npm run test:integration) for the upload, against the live services: 1. remote --report exits 0, saves the zip in the home folder, and prints "Sent to Desktop Commander support. Report id: <8 chars>" with the Worker's alphabet (no 0, 1, I or O). 2. remote --report --no-upload saves the zip and sends nothing. 3. A body that isn't a zip, POSTed straight to the Worker, gets 415. It runs with a temporary HOME / USERPROFILE whose device.json looks like a real sign-in, with ids fixed and reserved for tests (never real Supabase ids): device 00000000-0000-0000-0000-000000000001 and a fake, unsigned access token whose sub is 00000000-0000-0000-0000-000000000000. The CLI only reads sub; nothing signs in or refreshes. Its uploads land like any report, under <user>/<device>/<YYYY-MM-DD-HHMM>-<id>.zip. The upload goes to the default address; DC_DIAGNOSTICS_URL and MCP_SERVER_URL can point it elsewhere. The report id is printed. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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… most Review: the rotation could leave any number of log files; keep the last 7 days, no more. Each UTC weekday now has its own files: remote-mon.log, rotating at 1 MB into remote-mon.1.log and remote-mon.2.log as before. The first write on a weekday whose remote-<day>.log is over a day old (last week's) removes that day's 3 files before today's lines start. The names are a fixed set, so the log holds at most 7 days x 3 files, 21 MB, and nothing lists the folder. remote --report packs the 21 names that exist, oldest first by modification time. DeviceLog takes the clock and the rotation size as options, so the tests move the day without sleeping. They cover the names, rotation within a day, a new day, last week's files removed for that weekday only, a same-day restart that appends, and two weeks that never leave more than 21 files. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…ames
Review: the upload goes through /api/mcp-info's diagnosticsUrl only, with no
fallback; remove DEFAULT_DIAGNOSTICS_URL.
uploadReport() now takes the address from its options only. The built-in
default, the defaultUrl option and the DC_DIAGNOSTICS_URL override are
gone. When the server names no address, nothing is uploaded, the zip stays
saved, and the terminal says "Not sent (the server named no upload
address)". Until production's remote-dc-mcp sets DIAGNOSTICS_URL, reports
stay local.
A refused upload shows the Worker's message from its {code, message}
answer: "Not sent (the server answered 429: too many reports, try again in
a minute)".
The server's address is used if it is https, or http on this machine
(127.0.0.1, localhost, ::1): the tests' stand-in now names its own address
in /api/mcp-info instead of an environment variable. The integration test
saves a report with the CLI and uploads it with the Worker's address it
holds itself, then checks that a non-zip is refused with the Worker's
message.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Review: a Node path that no rule recognizes was reported as "global install"; it should be "unknown". Only the known global-install paths now give "global install": Program Files/nodejs, /usr/local/bin and /usr/bin. nvm, fnm, Volta, asdf, mise, Homebrew and Claude Desktop stay as they were, and anything else is "unknown"; the report shows the path itself anyway. nodeKind() is exported and tested with sample paths. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Review: use a timestamp instead of savedHoursAgo. report.json's device.savedHoursAgo becomes savedAt: device.json's modification time as ISO (UTC). report.txt shows it as "saved YYYY-MM-DD HH:MM UTC", in the same form as the device log's times. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
mihailt
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Oct 7, 2026
…1-alpha.0
The version line check allowed only x.y.z, so a pre-release such as
0.3.1-alpha.0 failed "versions include npm, and how Node runs" on every
platform. A semver pre-release suffix is now accepted; a malformed one
("0.3.1-", "0.3.1 beta") still fails.
Made on #813's head, where main and rc-v0.3.1 split, and merged into both.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Adds
remote --report: one command a user runs when Remote Desktop Commander misbehaves. It collects diagnostics into a zip, sends it to Desktop Commander support, and prints a report id the user gives to support.What this adds
remote --reportsaves a zip with versions, clock, network checks, device state and the device's log, uploads it, and prints a report id. It doesn't start the device or sign in.remoterun writes~/.desktop-commander-device/remote-<weekday>.log: every line it prints, masked, without tool arguments and results, the email, or the sign-in link and code. 1 MB, 3 files a day for 7 days: 21 at most.--debug, an error print shows the session tokens.What the user sees
--no-uploadonly saves the zip. If the upload fails, the zip stays and the last line says to attach it instead.Where to look
src/remote-device/diagnostics/report.ts(new): collects the facts, builds the zip, prints the result.src/remote-device/diagnostics/upload.ts(new): sends the zip with the user and device ids fromdevice.json. The address comes from/api/mcp-info(diagnosticsUrl); if the server sends none, nothing is uploaded and the zip stays saved.src/remote-device/diagnostics/device-log.ts(new): the log, and the few rules that drop private lines.src/remote-device/diagnostics/redact.ts(new): masks tokens, emails, ids, the home folder, and the user and host names.src/npm-scripts/remote.ts:--reportand--no-upload; a normal run starts the log.device.tsandremote-channel.tsare unchanged.How to verify
What the zip holds
report.txt: the readable summary, example below.report.json: the same facts.device-log/: the device's log.~).Tests
test-redact.js,test-remote-device-log.js,test-remote-report.js: each uses its own temporary home and a local stand-in server, with no network. Planted tokens, an email, tool arguments, the home path and the user name never come out. The upload is checked against the stand-in: the same bytes and both ids arrive,--no-uploadsends nothing, and a server error keeps the zip.test/integration/remote-report-upload.js: a report saved with--no-upload, then uploaded to the deployed Worker, with a test device (fixed test ids, never real ones).10631170(npm test, temporary home): macOS 70/70; Windows 67/70, the 3 beingmain's known issues (test-config-atomic-write,test-config-client-id-cross-process: EPERM renames;test-enhanced-repl: no Python), fixed by fix(windows): retry blocked renames; one atomic-write implementation #762 / test: run the suite on every platform, isolated, with visible skips #781 inrc-v0.3.1.🤖 Generated with Claude Code
Summary by CodeRabbit
remote --reportto create and upload a diagnostic report ZIP without signing in or starting the device.--no-uploadto save the report locally for manual attachment. If upload fails, the report remains available.