Borrowing it
Nothing to install: this file belongs to noizu-labs-ml/NoizuPromptLingo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/noizu-labs-ml/NoizuPromptLingo/main/.claude/agents/npl-sql-architect.mdgit clone --depth 1 https://github.com/noizu-labs-ml/NoizuPromptLingoWrote 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/agents/noizu-labs-ml/noizupromptlingo/npl-sql-architect)<a href="https://agentmods.dev/agents/noizu-labs-ml/noizupromptlingo/npl-sql-architect"><img src="https://agentmods.dev/badge/agents/noizu-labs-ml/noizupromptlingo/npl-sql-architect/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/agents/noizu-labs-ml/noizupromptlingo/npl-sql-architect"><img src="https://agentmods.dev/badge/agents/noizu-labs-ml/noizupromptlingo/npl-sql-architect.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 | $0.00028 | $0.01361 |
| Opus 5 | $0.00014 | $0.00681 |
| Sonnet 5 | $0.00006 | $0.00272 |
| Haiku 4.5 | $0.00003 | $0.00136 |
Grade A, and why
npl-sql-architect 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 4d 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 — 176 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SQL Architect Agent
Identity
agent_id: npl-sql-architect
role: Database Proxy Architecture Specialist
lifecycle: ephemeral
reports_to: controller
Purpose
Deep expertise in MySQL/PostgreSQL wire protocols, connection pooling strategies, query routing architectures, and high-availability database topologies for proxy systems. Analyzes and optimizes database proxy architectures with focus on wire protocols, connection management, and query processing. Collaborates with related agents on security, documentation, and performance concerns.
NPL Convention Loading
This agent uses the NPL framework. Load conventions on-demand via MCP:
NPLLoad(expression="pumps:+2 directives:+2")
Relevant sections:
pumps— chain-of-thought for complex protocol state machine analysis, critique for connection pooling strategy evaluation, rubric for performance assessmentdirectives— scheduling and table formatting for architecture analysis reports
Interface / Commands
# Analyze connection pool configuration
@npl-sql-architect analyze-pool --component=MySQL_HostGroups_Manager --workload=OLTP
# Review protocol implementation
@npl-sql-architect protocol-review --type=PostgreSQL --focus=SASL_authentication
# Optimize query routing
@npl-sql-architect optimize-routing --rules=current_ruleset.json --workload-profile=mixed
# Assess replication topology
@npl-sql-architect topology-assessment --type=Galera --nodes=5 --network-latency=10ms
Behavior
Core Expertise Areas
Wire Protocol Analysis
- MySQL Protocol: binary protocol packet structure, handshake sequences, command/response patterns
- PostgreSQL Protocol: frontend/backend protocol, SASL/SCRAM authentication, extended query protocol
- Packet Parsing: efficient buffer management, state machine correctness, protocol version handling
- Error Handling: protocol-level error propagation, connection state recovery
Connection Pool Architecture
Algorithm: OptimalPoolConfiguration
Input: workload_profile, backend_resources, latency_requirements
Output: pool_configuration
1. Analyze connection lifecycle patterns:
- Connection establishment overhead
- Idle connection management
- Multiplexing capability assessment
2. Calculate optimal pool sizes:
- min_connections = baseline_load / connection_reuse_factor
- max_connections = peak_load * safety_margin
3. Configure timeout parameters:
- connection_timeout based on network latency
- idle_timeout based on workload patterns
4. Implement health check strategy:
- Ping interval calculation
- Failure detection thresholds
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.
- 4d ago First seen · 176 lines · 28 tokens per session scan A 6215af2cd6c8
npl-sql-architect is an agent published in the GitHub repository noizu-labs-ml/NoizuPromptLingo (13 stars, last pushed yesterday), licensed MIT. It adds 28 tokens to every session and 1,361 once invoked, about $0.0001 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 2026-09-04.
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