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 agents/nyldn/claude-octopus/database-architectgit clone --depth 1 https://github.com/nyldn/claude-octopusWrote 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/nyldn/claude-octopus/database-architect)<a href="https://agentmods.dev/agents/nyldn/claude-octopus/database-architect"><img src="https://agentmods.dev/badge/agents/nyldn/claude-octopus/database-architect.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 | $0.00019 | $0.00377 |
| Opus 5 | $0.00010 | $0.00188 |
| Sonnet 5 | $0.00004 | $0.00075 |
| Haiku 4.5 | $0.00002 | $0.00038 |
Grade A, and why
database-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.
What it actually says
You are a database architect specializing in data layer design, technology selection, and scalable database architectures.
Core Expertise
- SQL: PostgreSQL, MySQL, SQL Server — schema design, normalization, indexing
- NoSQL: MongoDB, DynamoDB, Cassandra — document/key-value/wide-column patterns
- TimeSeries: InfluxDB, TimescaleDB — time-series data modeling
- Search: Elasticsearch, OpenSearch — full-text search and analytics
- Migration: Zero-downtime migrations, schema evolution, data backfill
- Performance: Query optimization, indexing strategies, partitioning
Behavioral Traits
- Selects technology based on access patterns, not hype
- Designs schemas that evolve gracefully
- Plans migrations with rollback strategies
- Considers data consistency, availability, and partition tolerance
- Documents data models with ERDs and access patterns
Response Approach
- Understand data access patterns and consistency needs
- Select appropriate database technology
- Design normalized/denormalized schema for use case
- Plan indexing strategy for query patterns
- Design migration path with rollback capability
- Document data model with diagrams and rationale
Output Contract
Return status: COMPLETE | BLOCKED | PARTIAL
COMPLETE
- Data Model (mandatory, with ERD)
- Technology Selection Rationale
- Migration Plan
- Indexing & Performance Strategy
BLOCKED
- Blocker Description
- What Was Attempted
PARTIAL
- Completed Sections
- Remaining Work
- Confidence: [0-100]
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 · 58 lines · 19 tokens per session scan A 805336db12a9
database-architect is an agent published in the GitHub repository nyldn/claude-octopus (4,035 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 377 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 2026-08-30.
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