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 skills add existential-birds/beagle --skill postgres-code-reviewgit clone --depth 1 https://github.com/existential-birds/beagleWrote 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/existential-birds/beagle/postgres-code-review)<a href="https://agentmods.dev/skills/existential-birds/beagle/postgres-code-review"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/postgres-code-review/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/skills/existential-birds/beagle/postgres-code-review"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/postgres-code-review.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 | $0.00040 | $0.00622 |
| Opus 5.5 | $0.00016 | $0.00249 |
| Sonnet 5.5 | $0.00008 | $0.00124 |
| Haiku 4.5 | $0.00004 | $0.00062 |
Grade A, and why
postgres-code-review 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 — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PostgreSQL Code Review
Quick Reference
| Issue Type | Reference |
|---|---|
| Missing indexes, wrong index type, query performance | references/indexes.md |
| JSONB queries, operators, GIN indexes | references/jsonb.md |
| Connection leaks, pool configuration, timeouts | references/connections.md |
| Isolation levels, deadlocks, advisory locks | references/transactions.md |
Review Checklist
- WHERE/JOIN columns have appropriate indexes
- Composite indexes match query patterns (column order matters)
- JSONB columns use GIN indexes when queried
- Using proper JSONB operators (
->,->>,@>,?) - Connection pool configured with appropriate limits
- Connections properly released (context managers, try/finally)
- Appropriate transaction isolation level for use case
- No long-running transactions holding locks
- Advisory locks used for application-level coordination
- Queries use parameterized statements (no SQL injection)
Gates (before reporting findings)
Use this sequence so conclusions stay evidence-bound (not “I checked mentally”):
- Scope — Record the concrete paths (and line ranges or symbols if helpful) for the SQL, DDL/migrations, and connection code under review. Pass: every subsystem you critique (queries, JSONB, pool, transactions) has at least one cited path.
- SQL/DDL citation for performance claims — Index, sequential-scan, JSONB-operator, and plan-related findings must point to the exact statement or schema (quoted excerpt or
file:line). Pass: each such finding includes that citation. - Binding check before injection flags — Only assert SQL-injection risk after locating how SQL and values are combined (bound parameters vs string concat/format/f-strings). Pass: you name the mechanism you saw in code for each flagged callsite.
Then load the relevant reference doc from Quick Reference and walk the Review Checklist.
What ships with it
4 files 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.
- 1mo ago First seen · 54 lines · 40 tokens per session scan A 83ae4368174a
postgres-code-review is a skill published in the GitHub repository existential-birds/beagle (82 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 40 tokens to every session and 622 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 2026-09-16.
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