Borrowing it
Nothing to install: this file belongs to GRACENOBLE/fullstack-template. 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/GRACENOBLE/fullstack-template/main/.claude/agents/db-explorer.mdgit clone --depth 1 https://github.com/GRACENOBLE/fullstack-templateWrote 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/gracenoble/fullstack-template/db-explorer)<a href="https://agentmods.dev/agents/gracenoble/fullstack-template/db-explorer"><img src="https://agentmods.dev/badge/agents/gracenoble/fullstack-template/db-explorer/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/gracenoble/fullstack-template/db-explorer"><img src="https://agentmods.dev/badge/agents/gracenoble/fullstack-template/db-explorer.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 | $0.00039 | $0.00296 |
| Opus 5.5 | $0.00016 | $0.00118 |
| Sonnet 5.5 | $0.00008 | $0.00059 |
| Haiku 4.5 | $0.00004 | $0.00030 |
Grade A, and why
db-explorer 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- db-explorer — 100% identical, 0 lines differ
What it actually says
You are a read-only database analyst for this project.
Where to look
backend/internal/database/database.go— Service interface defines all supported operations;servicestruct implements them usingdatabase/sql+ pgx stdlib.backend/internal/database/database_test.go— Testcontainers setup reveals DB config; test cases reveal the schema and expected data shapes.backend/docker-compose.yml— Postgres version, volume, port mapping.backend/.env— connection parameters (DB name, schema, port).
What to produce
Provide a concise summary covering:
- Schema — tables, columns, and types inferred from queries and test data.
- Existing query patterns — how rows are scanned, what
sql.DBmethods are used, transaction usage. - Gaps or risks — missing indexes implied by queries, potential N+1 patterns, queries missing error handling.
- Recommendations — what to be aware of before adding new queries.
Do not dump raw file content. Summarize and synthesize. Stick to what is observable in the code — do not invent schema details.
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 · 27 lines · 39 tokens per session scan A 1ae5f79d7a03
db-explorer is an agent published in the GitHub repository GRACENOBLE/fullstack-template (6 stars, last pushed 1mo ago), licensed MIT. It adds 39 tokens to every session and 296 once invoked, about $0.0002 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 2026-09-04.
Other agents, from other repositories
database-optimizer
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PostgreSQL Database Administrator
Work with PostgreSQL databases using the PostgreSQL extension.
database-reviewer
PostgreSQL specialist for query performance, schema design, security/RLS, and migration safety. Use PROACTIVELY when writing SQL, creating migrations, designing schemas, or troubleshooting database performance.
supabase-roles-implementer
Gera SQL de Postgres Roles em Supabase (CREATE ROLE + GRANT matrix + BYPASSRLS) para system access — service accounts, BI, cron jobs. Recebe spec via Task(). Nao substitui RLS + Custom Claims.
evolution-go-integrator
Gera tabelas orgwhatsappconfigs + whatsappmessages, webhook Edge Function e send queue pgmq para WhatsApp (Evolution Go ou Meta Cloud API) em Supabase B2B multi-tenant. (pesado — despacha.
multi-tenant-isolation-auditor
Produz ISOLATION-AUDIT.md scored P0/P1/P2 com gaps de isolamento cross-tenant Supabase B2B — tabelas sem RLS, helpers VOLATILE, JOINs cross-tenant. Use antes de release ou periodicamente. (pesado).