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 skills/gemini-cli-extensions/cloud-sql-postgresql/cloud-sql-postgres-replicationnpx skills add gemini-cli-extensions/cloud-sql-postgresql --skill cloud-sql-postgres-replicationgit clone --depth 1 https://github.com/gemini-cli-extensions/cloud-sql-postgresqlWhat 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 | $0.00038 | $0.00770 |
| Opus 5 | $0.00019 | $0.00385 |
| Sonnet 5 | $0.00008 | $0.00154 |
| Haiku 4.5 | $0.00004 | $0.00077 |
Grade A, and why
cloud-sql-postgres-replication 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 2d 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 — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Usage
All scripts can be executed using Node.js. Replace <param_name> and <param_value> with actual values.
Bash:
node <skill_dir>/scripts/<script_name>.js '{"<param_name>": "<param_value>"}'
PowerShell:
node <skill_dir>/scripts/<script_name>.js '{\"<param_name>\": \"<param_value>\"}'
Note: The scripts automatically load the environment variables from various .env files. Do not ask the user to set vars unless skill executions fails due to env var absence.
Scripts
database_overview
Fetches the current state of the PostgreSQL server, returning the version, whether it's a replica, uptime duration, maximum connection limit, number of current connections, number of active connections, and the percentage of connections in use.
list_pg_settings
Parameters
| Name | Type | Description | Required | Default |
|---|---|---|---|---|
| setting_name | string | Optional: A specific configuration parameter name pattern to search for. | No | `` |
| limit | integer | Optional: The maximum number of rows to return. | No | 50 |
list_publication_tables
Parameters
| Name | Type | Description | Required | Default |
|---|---|---|---|---|
| table_names | string | Optional: Filters by a comma-separated list of table names. | No | `` |
| publication_names | string | Optional: Filters by a comma-separated list of publication names. | No | `` |
| schema_names | string | Optional: Filters by a comma-separated list of schema names. | No | `` |
| limit | integer | Optional: The maximum number of rows to return. | No | 50 |
list_replication_slots
List key details for all PostgreSQL replication slots (e.g., type, database, active status) and calculates the size of the outstanding WAL that is being prevented from removal by the slot.
list_roles
Lists all the user-created roles in the instance . It returns the role name, Object ID, the maximum number of concurrent connections the role can make, along with boolean indicators for: superuser status, privilege inheritance from member roles, ability to create roles, ability to create databases, ability to log in, replication privilege, and the ability to bypass row-level security, the password expiration timestamp, a list of direct members belonging to this role, and a list of other roles/groups that this role is a member of.
What ships with it
6 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.
- 2d ago First seen · 90 lines · 38 tokens per session scan A 7dd902f1b57a
cloud-sql-postgres-replication is a skill published in the GitHub repository gemini-cli-extensions/cloud-sql-postgresql (42 stars, last pushed 5d ago), licensed Apache-2.0. It adds 38 tokens to every session and 770 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 2026-08-30.
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