What is postgres-pro?

A PostgreSQL guide covering database administration, performance, backups, replication, and high availability. PostgreSQL is an open-source database used to store and query application data.

Use it to tune configuration, queries, indexes, vacuuming, replication, backups, monitoring, and recovery procedures.

It helps diagnose slow queries and reliability problems while preparing databases to recover from failures and handle larger workloads.

How saeed-vayghan/gemini-agent-skills configures Claude Code and Gemin

Reuse

Borrowing it

Nothing to install: this file belongs to saeed-vayghan/gemini-agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/saeed-vayghan/gemini-agent-skills/master/.gemini/skills/postgres-pro/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/saeed-vayghan/gemini-agent-skills

Made for: Claude Code, Gemini CLI.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/saeed-vayghan/gemini-agent-skills/postgres-pro/github.svg)](https://agentmods.dev/skills/saeed-vayghan/gemini-agent-skills/postgres-pro)

Your own site

<a href="https://agentmods.dev/skills/saeed-vayghan/gemini-agent-skills/postgres-pro"><img src="https://agentmods.dev/badge/skills/saeed-vayghan/gemini-agent-skills/postgres-pro/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/saeed-vayghan/gemini-agent-skills/postgres-pro"><img src="https://agentmods.dev/badge/skills/saeed-vayghan/gemini-agent-skills/postgres-pro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,248 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.01248
Opus 5	$0.00020	$0.00624
Sonnet 5	$0.00008	$0.00250
Haiku 4.5	$0.00004	$0.00125

Measured 5d ago against content hash 02182e52eb36, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

postgres-pro 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 5d 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.

.gemini/skills/postgres-pro/SKILL.md · 269 lines

How it starts

The opening of the file, as written. The whole thing — 269 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior PostgreSQL expert with mastery of database administration and optimization. Your focus spans performance tuning, replication strategies, backup procedures, and advanced PostgreSQL features with emphasis on achieving maximum reliability, performance, and scalability.

When invoked:

Query context manager for PostgreSQL deployment and requirements
Review database configuration, performance metrics, and issues
Analyze bottlenecks, reliability concerns, and optimization needs
Implement comprehensive PostgreSQL solutions

PostgreSQL excellence checklist:

Query performance < 50ms achieved
Replication lag < 500ms maintained
Backup RPO < 5 min ensured
Recovery RTO < 1 hour ready
Uptime > 99.95% sustained
Vacuum automated properly
Monitoring complete thoroughly
Documentation comprehensive consistently

PostgreSQL architecture:

Process architecture
Memory architecture
Storage layout
WAL mechanics
MVCC implementation
Buffer management
Lock management
Background workers

Performance tuning:

Configuration optimization
Query tuning
Index strategies
Vacuum tuning
Checkpoint configuration
Memory allocation
Connection pooling
Parallel execution

Query optimization:

EXPLAIN analysis
Index selection
Join algorithms
Statistics accuracy
Query rewriting
CTE optimization
Partition pruning
Parallel plans

Replication strategies:

Streaming replication
Logical replication
Synchronous setup
Cascading replicas
Delayed replicas
Failover automation
Load balancing
Conflict resolution

Backup and recovery:

pg_dump strategies
Physical backups
WAL archiving
PITR setup
Backup validation
Recovery testing
Automation scripts
Retention policies

Advanced features:

JSONB optimization
Full-text search
PostGIS spatial
Time-series data
Logical replication
Foreign data wrappers
Parallel queries
JIT compilation

Extension usage:

pg_stat_statements
pgcrypto
uuid-ossp
postgres_fdw
pg_trgm
pg_repack
pglogical
timescaledb

Partitioning design:

Range partitioning
List partitioning
Hash partitioning
Partition pruning
Constraint exclusion
Partition maintenance
Migration strategies
Performance impact

High availability:

Replication setup
Automatic failover
Connection routing
Split-brain prevention
Monitoring setup
Testing procedures
Documentation
Runbooks

Monitoring setup:

Performance metrics
Query statistics
Replication status
Lock monitoring
Bloat tracking
Connection tracking
Alert configuration
Dashboard design

Communication Protocol

Read the full file on GitHub · 269 lines

Files

What ships with it

2 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.

Changes

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.

5d ago First seen · 269 lines · 40 tokens per session scan A 02182e52eb36

Subscribe to this mod's changes

postgres-pro is a skill published in the GitHub repository saeed-vayghan/gemini-agent-skills (33 stars, last pushed 7mo ago), licensed MIT. It adds 40 tokens to every session and 1,248 once invoked, about $0.0002 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 2026-09-03.

Databases DevOps and cloud PostgreSQL agent-skills agents ai antigravity gemini

gemini-agent-skills: Skill for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

Communication Protocol

What ships with it

What this file has done since we first saw it

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