Azure SQL Database container packages the Azure SQL Database engine so developers can run it locally in a container while building and testing applications before deploying to Azure. It is intended for local development and continuous integration, with catalogue add-ons helping coding agents work with the container.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/microsoft/azure-sql-database-container/azuresql-db-connectionsnpx skills add microsoft/azure-sql-database-container --skill azuresql-db-connectionsgit clone --depth 1 https://github.com/microsoft/azure-sql-database-containerWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/microsoft/azure-sql-database-container/azuresql-db-connections)<a href="https://agentmods.dev/skills/microsoft/azure-sql-database-container/azuresql-db-connections"><img src="https://agentmods.dev/badge/skills/microsoft/azure-sql-database-container/azuresql-db-connections.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00164 | $0.02468 |
| Opus 5 | $0.00082 | $0.01234 |
| Sonnet 5 | $0.00033 | $0.00494 |
| Haiku 4.5 | $0.00016 | $0.00247 |
Grade A, and why
azuresql-db-connections scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Reliable connections on the Azure SQL Database container (pooling + retry)
Make the app's database connections reliable with connection pooling and retry / transient-fault handling. This is the Azure SQL engine (Private Preview), not the SQL Server image.
Why do this locally (local-to-cloud parity)
The local container rarely drops a connection, so it is tempting to skip pooling and retry. Do not. Azure SQL Database in the cloud throttles and drops connections during failovers, scaling, and load; a client with no retry surfaces those as hard errors. Build pooling and retry now, against the local container, and the same code survives in the cloud with no rewrite. For the full promote-to-cloud story see the azuresql-db-local-to-cloud skill.
Verify identity once running: SELECT SERVERPROPERTY('EngineEdition') returns 5 and
SERVERPROPERTY('Edition') returns 'SQL Azure'. For full engine detail see the
azuresql-db-container skill.
The engine and the connection contract
- Image:
sqldbpreview-dpgaeqhmgphzd4bk.azurecr.io/azure-sql/db-dev:latest(x64 / linux/amd64, Private Preview registry). Sign in first:docker login sqldbpreview-dpgaeqhmgphzd4bk.azurecr.iowith the shared pull-only credentials from https://aka.ms/sqldbcontainerpreview-signup (they may rotate). On a non-x64 host add--platform linux/amd64(Docker) orplatform: linux/amd64(compose). - Do NOT use
mcr.microsoft.com/mssql/server(the SQL Server image). - Required env:
ACCEPT_EULA=Yand a complexMSSQL_SA_PASSWORD(example literal:YourStr0ng_Passw0rd). The engine listens on 1433. - The engine does NOT auto-create databases.
CREATE DATABASE appdbon a master connection first. Do notUSEto switch databases: a user-database session returnsMsg 40508. Select the database in the connection string (Database=appdb). - Apps read one env var,
SQL_CONNECTION_STRING. Strings useUser Id=/Password=/Database=andTrustServerCertificate=true. sqlcmd uses-C.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 5d ago First seen · 158 lines · 164 tokens per session scan A 5b3603df22b9
azuresql-db-connections is a skill published in the GitHub repository microsoft/azure-sql-database-container (17 stars, last pushed 3d ago), licensed MIT. It adds 164 tokens to every session and 2,468 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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