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Add device sweep to resolve Claude connector UUIDs#217

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vv/backfill-uuid-mcp-connectors
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Add device sweep to resolve Claude connector UUIDs#217
zeus-12 wants to merge 1 commit into
stagingfrom
vv/backfill-uuid-mcp-connectors

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@zeus-12 zeus-12 commented Jun 26, 2026

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What

Adds a device-side sweep that resolves bare Claude connector UUIDs to their real names so the control plane can group/policy them. Companion backend change: ai-gateway-data PR (vv/backfill-uuid-mcp-connectors).

Claude desktop OAuth remote connectors are named by a per-registration UUID at runtime. The real display name only exists in the local Claude session files on the device — the backend can't resolve it alone.

How (sweep_connectors.py)

  1. GET /api/v1/ai-tools/unresolved-connector-uuids/ — the opaque list of UUIDs the backend still needs resolved.
  2. Read the local session files in both folders (claude-code-sessions = Claude Code, local-agent-mode-sessions = CoWork) → remoteMcpServersConfig{uuid, name, tools}, de-duped across folders.
  3. For each UUID the backend asked for and we can resolve locally, POST the real name + tools + originating connector_uuid to /api/v1/ai-tools/mcp-server-scan/.

Only UUIDs the backend explicitly requested ever leave the device — nothing else from the session files is sent. HTTP uses curl per the Zscaler constraint (no urllib).

Notes

  • Standalone script for now; wiring it into the tool's existing scan cycle is a follow-up.
  • Validated against a real machine: resolves Gmail / Google Calendar / Notion / Linear, dedupes the two Google Calendar UUIDs.
  • Automated test coverage not included in this PR.

🤖 Generated with Claude Code


Note

Low Risk
Adds an opt-in CLI script with scoped outbound reporting (only backend-listed UUIDs); no changes to existing discovery flows or shared libraries.

Overview
Adds sweep_connectors.py, a standalone device-side script that backfills bare Claude OAuth connector UUIDs with human-readable names and tool lists the control plane cannot infer without local Claude session data.

The flow fetches an opaque list from GET /api/v1/ai-tools/unresolved-connector-uuids/, maps requested UUIDs against remoteMcpServersConfig in local claude-code-sessions and local-agent-mode-sessions JSON (with cross-folder de-dupe and tool union), then POSTs only matched UUIDs to /api/v1/ai-tools/mcp-server-scan/ with connector_uuid, claude-connector scope, name, tools, and optional URL. HTTP is implemented via curl (stdin config + Bearer auth) rather than urllib, consistent with other discovery scripts and Zscaler constraints.

Not wired into the main discovery scan cycle in this PR; no automated tests included.

Reviewed by Cursor Bugbot for commit 23ea63a. Bugbot is set up for automated code reviews on this repo. Configure here.

Greptile Summary

This PR adds a standalone sweep for resolving Claude connector UUIDs. The main changes are:

  • Fetch unresolved connector UUIDs from the control plane.
  • Read Claude Code and CoWork session files for matching connector names and tools.
  • Post resolved connector metadata back to the MCP server scan endpoint.

Confidence Score: 1/5

The new sweep can send extra local connector metadata and can merge conflicting session records into one backend report.

  • The report payload includes url from local session files.
  • Duplicate UUIDs are merged without checking that name and URL match.
  • Curl transport failures lose the useful stderr details.

scripts/coding_discovery_tools/sweep_connectors.py

Security Review

The sweep sends the local connector URL from session files to the control plane, which expands the device metadata disclosed beyond the stated UUID/name/tools payload.

Important Files Changed

Filename Overview
scripts/coding_discovery_tools/sweep_connectors.py Adds the connector UUID sweep, with issues in payload scope, duplicate UUID handling, and curl failure diagnostics.

Reviews (1): Last reviewed commit: "Add device sweep to resolve Claude conne..." | Re-trigger Greptile

Greptile also left 3 inline comments on this PR.

Context used:

  • Rule used - Ensure that the confidence score is always within ... (source)

Learned From
websentry-ai/ai-gateway-data#448

  • Context used - P0 — Critical (must block merge)
    Django / Backend ... (source)

Fetch the backend's unresolved-UUID list, match each against the local Claude
session files (Claude Code + CoWork folders), and report the resolved name +
tools back via the single-server scan endpoint with the originating UUID. Only
UUIDs the backend asked for are sent; HTTP via curl per the Zscaler constraint.
@zeus-12 zeus-12 requested a review from a team June 26, 2026 21:21
Comment on lines +154 to +155
if url:
mcp_server["url"] = url

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P1 security Session URL Leaves Device

When a requested UUID is resolved, this branch also sends the local session url to the control plane. The flow is described as sending only the requested UUID plus the real name and tools, so a normal successful sweep can disclose private connector endpoints or stale local URLs that the backend did not ask for.

Suggested change
if url:
mcp_server["url"] = url

Context Used: P0 — Critical (must block merge)
Django / Backend ... (source)

Comment on lines +90 to +95
else:
if not existing.get("name"):
existing["name"] = name
if not existing.get("url") and entry.get("url"):
existing["url"] = entry.get("url")
existing["tools"] = _union_tools(existing.get("tools") or [], tools)

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P1 Conflicting UUIDs Get Merged

When the same UUID appears in more than one scanned session file, this path keeps the first name and URL but unions tools from every later entry. A stale or conflicting file can produce one report with connector A's identity and connector B's tools, causing the backend to fold the unresolved UUID into the wrong grouped connector metadata.

Suggested change
else:
if not existing.get("name"):
existing["name"] = name
if not existing.get("url") and entry.get("url"):
existing["url"] = entry.get("url")
existing["tools"] = _union_tools(existing.get("tools") or [], tools)
else:
if existing.get("name") and existing.get("name") != name:
continue
if existing.get("url") and entry.get("url") and existing.get("url") != entry.get("url"):
continue
if not existing.get("name"):
existing["name"] = name
if not existing.get("url") and entry.get("url"):
existing["url"] = entry.get("url")
existing["tools"] = _union_tools(existing.get("tools") or [], tools)

Comment on lines +111 to +114
result = subprocess.run(
args, input=curl_config, capture_output=True, text=True, timeout=timeout,
)
out = (result.stdout or "").strip()

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P2 Curl Errors Lose Diagnostics

When curl fails before a valid HTTP response, _run_curl ignores the non-zero exit code and stderr. Proxy, DNS, TLS, and timeout failures can be reported as an empty status or http 000, leaving operators without the real reason the sweep could not fetch or report UUIDs.

Suggested change
result = subprocess.run(
args, input=curl_config, capture_output=True, text=True, timeout=timeout,
)
out = (result.stdout or "").strip()
result = subprocess.run(
args, input=curl_config, capture_output=True, text=True, timeout=timeout,
)
if result.returncode != 0:
stderr = (result.stderr or "").strip()
raise RuntimeError(f"curl failed with exit {result.returncode}: {stderr[:200]}")
out = (result.stdout or "").strip()

Context Used: P0 — Critical (must block merge)
Django / Backend ... (source)

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Cursor Bugbot has reviewed your changes using high effort and found 2 potential issues.

Fix All in Cursor

❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.

Reviewed by Cursor Bugbot for commit 23ea63a. Configure here.

if not http_code.startswith("2"):
raise RuntimeError(f"list endpoint http {http_code}: {body[:200]}")
parsed = json.loads(body) if body else {}
return [u for u in (parsed.get("uuids") or []) if u]

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UUID strings not normalized

Medium Severity

Unresolved UUIDs from the API are matched against local session keys with plain string equality, while local UUIDs are only stripped. Values that differ by letter case or extra whitespace on one side never intersect, so the sweep can exit with zero local matches even when session files contain the connector.

Additional Locations (1)
Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit 23ea63a. Configure here.

existing["name"] = name
if not existing.get("url") and entry.get("url"):
existing["url"] = entry.get("url")
existing["tools"] = _union_tools(existing.get("tools") or [], tools)

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Duplicate UUID keeps first name

Medium Severity

When the same connector UUID appears in multiple local_*.json files, merge logic unions tools but never replaces an existing display name if the first stored entry already has one. A stale name from an earlier session file can be reported while a later file has the current name, producing the wrong claude-connector fingerprint on the control plane.

Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit 23ea63a. Configure here.

@vigneshsubbiah16 vigneshsubbiah16 left a comment

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🛡️ Automated Security Review (consensus)

2 findings — 1 high-confidence, 1 to triage. Reviewers: Cursor, Claude, Semgrep, Gitleaks.

🔴 HIGH — Local connector url sent beyond documented device scope

scripts/coding_discovery_tools/sweep_connectors.py:154-155 (also report_connector ~143-165)

Impact: Resolved sweeps POST the session file's url to the control plane even though the PR contract and module doc state only {name, tools, connector_uuid} leave the device — expanding disclosure of private MCP endpoint metadata the backend never requested.

Fix: Remove url from the report payload to match the documented contract, or explicitly extend the PR/backend scope and treat url as sensitive data end-to-end.

Flagged by: Greptile, Claude, Lead


🟡 TRIAGE — Conflicting duplicate UUIDs merged without identity checks

scripts/coding_discovery_tools/sweep_connectors.py:86-95

Impact: When the same UUID appears in multiple session files, merge logic keeps the first name/URL and unions tools from later entries — a stale or conflicting file can report connector A's identity with connector B's tools, folding the UUID into the wrong grouped fingerprint on the control plane.

Fix: Skip or split on name/URL mismatches before unioning tools (e.g., only merge when name and URL agree, or prefer the newest session file).

Flagged by: Greptile, Cursor


🤖 consensus review · reviewers: Cursor,Claude,Semgrep,Gitleaks · head 23ea63a2 · 2026-06-26T21:32Z

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2 participants