Read-only JSON API (/api/v1/instances, /api/v1/findings) and a
Prometheus endpoint (/metrics) in the web UI, with bearer tokens for
machines (only their SHA-256 is configured; a token only opens the API,
never the pages; sensitive evidence left out unless enabled). A
Grafana dashboard and Prometheus scrape example. A Windows Event Log
notification channel with fixed event ids for SCOM, exempt from the
hourly cap.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
Rule packs (support dates and newest CU per release) are published in a
signed feed and hot-loaded without a restart; the verified pack is
reloaded at startup. New versions are announced (Notify) or downloaded
and staged by the unprivileged agent (Automatic), and installed by a
privileged apply-update task that re-verifies signature and hash in an
admin-only folder, keeps appsettings/web.config, health-checks the
services and rolls back on failure. Stable and preview channels,
manifest expiry and rollback protection, https or folder/share feeds
for offline sites. Vendor tool gains rulepack and publish; the Hub can
serve the feed; the web UI gets a System page with update, rule pack,
license and exactly what is sent to the Hub.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
- ASP.NET Core API POST /api/v1/findings with EF Core (Npgsql, snake_case)
and a generated initial migration
- The hub is the authority on licenses: verifies the signature itself,
rejects invalid (401), community/expired past grace (403), revoked
(403, re-checked under the lock) and over the instance limit (403)
- Full-state reconciliation per instance: new findings inserted, existing
updated, missing ones resolved, rule states upserted; idempotent by
submission id; late older submissions are recorded but not applied
- Serialized per customer with a PostgreSQL advisory lock (found by a
concurrency test: parallel first submissions raced on the license row)
- Size and schema validation; tests on real PostgreSQL, including the full
path agent → queue → hub → PostgreSQL with evidence redaction
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
- Managed Instance reports 12.0.2000.8 but is evergreen: treated as the
newest engine with all capabilities; new SelfManagedInfrastructure
capability so backup, CHECKDB, files, tempdb, memory, patch level and
lifecycle rules report 'handled by Azure' instead of false findings
- Microsoft Entra ID login (managed identity, service principal, default
credential chain) via SqlConnection.AccessTokenCallback
- Least-privilege script recognizes Managed Instance; deadlock collector
falls back to the ring buffer when event files cannot be read
- Web UI shows the right release for Managed Instance
- README and installation docs: notifications and Managed Instance
- Catalog test: 61 rules with unique, well-formed ids
Integration suite green on SQL Server 2017 and 2022.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
- Repository reports which findings opened and resolved per evaluation
- Agent notifies on new and resolved findings and on instance
unreachable/recovered transitions, with links to the web UI
- Channels: e-mail (MailKit, HTML-encoded), Microsoft Teams Workflows
webhook (Adaptive Card), generic JSON webhook signed with HMAC-SHA256
- Per-channel minimum severity (outages always sent), one message per
batch, hourly cap per channel; a failing channel never stops monitoring
- Tested with a real SMTP server (Mailpit) and the real agent pipeline
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
- ASP.NET Core Blazor static SSR: overview with KPI tiles, instance page
(findings, CPU/batch/PLE trends, top waits, file latency, blocking,
deadlocks with .xdl download, not-measurable rules, resolved), finding
detail with explanation, evidence, fix script and references
- Light-first design (sidebar, cards, self-hosted Inter, teal accent),
optional dark theme via toggle; strict CSP, no inline styles
- Windows authentication (Negotiate/IIS) with optional group restriction;
refuses to run without authentication outside Development
- Hosting: IIS (in-process ASP.NET Core Module), Windows service with
Kestrel, or systemd; web reads the repository with db_datareader only
- docs/installation.md for repository, permissions, agent and web
- Fix: CPU used by other processes is not derived on Linux (SystemIdle is
unreliable there); deadlocks are not re-reported or stored twice after
an agent restart; Dapper sends datetime2 so time comparisons are exact
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
- Versioned, embedded migrations serialized with sp_getapplock so the agent
and web UI can both migrate at startup
- Findings tracked per rule and subject: first seen, last seen, resolved;
a rule that could not run never resolves its findings
- Time series (waits, file I/O, CPU, counters), blocking chains and
deadlock graphs; idempotent inserts (timestamps truncated to match
datetime2(0)), hourly aggregation and batched retention deletes
- Read API for the web UI; integration tests against SQL Server
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
- .NET 10 solution with Core, Connectivity, Rules, Contracts, Agent, Web and Hub
- Capability model gating collectors and rules by SQL Server version (2000 and later);
rules that cannot run are reported as not measurable, never as passed
- Connectivity via Microsoft.Data.SqlClient with ODBC fallback for legacy instances,
hardened monitoring session settings valid back to SQL Server 2000
- Support lifecycle rule (SQLI-VER-001) with lifecycle data shipped as a rule pack
- Version-aware least-privilege permissions script, verified by integration tests
against SQL Server in Docker (reads monitoring sources, cannot read customer data)
- Forgejo Actions CI, contributing guide, code of conduct, issue templates,
legacy version notes
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
