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.
git clone --depth 1 https://github.com/sfc-gh-cconner/support-rules-mcpWrote 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/rules/sfc-gh-cconner/support-rules-mcp/jdbc)<a href="https://agentmods.dev/rules/sfc-gh-cconner/support-rules-mcp/jdbc"><img src="https://agentmods.dev/badge/rules/sfc-gh-cconner/support-rules-mcp/jdbc/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/rules/sfc-gh-cconner/support-rules-mcp/jdbc"><img src="https://agentmods.dev/badge/rules/sfc-gh-cconner/support-rules-mcp/jdbc.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.01472 | $0.01472 |
| Opus 5.5 | $0.00589 | $0.00589 |
| Sonnet 5.5 | $0.00294 | $0.00294 |
| Haiku 4.5 | $0.00147 | $0.00147 |
Grade A, and why
jdbc 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 1mo 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 — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Snowflake JDBC Driver Investigation Guide
PURPOSE: JDBC driver patterns for Java applications connecting to Snowflake.
Access Method: GitHub MCP API tools
Repository: snowflakedb/snowflake-jdbc
🔍 Quick Investigation Patterns
Connection Issues
# Search for connection errors
mcp_github_search_code(
query='"Connection refused" OR "Connection timeout" repo:snowflakedb/snowflake-jdbc'
)
# Get connection implementation
mcp_github_get_file_contents(
owner="snowflakedb",
repo="snowflake-jdbc",
path="src/main/java/net/snowflake/client/core/SFSession.java"
)
# Search for retry logic
mcp_github_search_code(
query='HttpUtil OR RestRequest repo:snowflakedb/snowflake-jdbc'
)
Session Management
# Search for session errors
mcp_github_search_code(
query='"Session no longer exists" OR "Session expired" repo:snowflakedb/snowflake-jdbc'
)
# Get session handling
mcp_github_get_file_contents(
owner="snowflakedb",
repo="snowflake-jdbc",
path="src/main/java/net/snowflake/client/core/SessionUtil.java"
)
# Search for heartbeat
mcp_github_search_code(
query='heartbeat OR HeartbeatBackground repo:snowflakedb/snowflake-jdbc'
)
Authentication
# Search for auth implementations
mcp_github_search_code(
query='path:src/main/java/net/snowflake/client/core/auth repo:snowflakedb/snowflake-jdbc'
)
# Get authenticator factory
mcp_github_get_file_contents(
owner="snowflakedb",
repo="snowflake-jdbc",
path="src/main/java/net/snowflake/client/core/auth/AuthenticatorFactory.java"
)
🎯 Key Components
Core Classes
# Main driver class
mcp_github_get_file_contents(
owner="snowflakedb", repo="snowflake-jdbc",
path="src/main/java/net/snowflake/client/jdbc/SnowflakeDriver.java"
)
# Connection implementation
mcp_github_get_file_contents(
owner="snowflakedb", repo="snowflake-jdbc",
path="src/main/java/net/snowflake/client/jdbc/SnowflakeConnectionV1.java"
)
# Statement execution
mcp_github_get_file_contents(
owner="snowflakedb", repo="snowflake-jdbc",
path="src/main/java/net/snowflake/client/jdbc/SnowflakeStatementV1.java"
)
# Result set handling
mcp_github_get_file_contents(
owner="snowflakedb", repo="snowflake-jdbc",
path="src/main/java/net/snowflake/client/jdbc/SnowflakeResultSetV1.java"
)
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.
- 1mo ago First seen · 241 lines · 1,472 tokens per session scan A 3c1d344e4a8d
jdbc is a cursor rule published in the GitHub repository sfc-gh-cconner/support-rules-mcp (0 stars, last pushed 1y ago), licensed Apache-2.0. It adds 1,472 tokens to every session, about $0.0059 per session on Opus 5.5. 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 2026-08-31.
Other cursor rules, from other repositories
entity-class-conventions
A set of rules for Java classes that represent database records, called entities. It defines required annotations, automatic ID creation, lazy relationship loading, and field validation.
jooq-database-access
Cursor rule "jooq-database-access" from e-gov/cursor-prompts, covering jooq dsl and database access conventions, context, requirements, examples and critical rules.
303-frameworks-spring-data-jdbc
Spring Data JDBC provides a simpler alternative to JPA, offering direct SQL control while maintaining Spring's repository abstractions. When combined with Java records, it creates clean, immutable data models perfect for modern Java applications.
entity-class-conventions
description: Sets the standards for entity class design including annotations, ID generation strategies, and relationship configurations for database interaction. globs: /src/main/java/com/example/entities/.java.
entity-class-conventions
Sets the standards for entity class design including annotations, ID generation strategies, and relationship configurations for database interaction.
repository-class-conventions
Governs the structure and functionality of repository classes, emphasizing the use of JpaRepository, JPQL queries, and EntityGraphs to prevent N+1 problems.