Schema | PgGuard Agent

PgGuard Agent

Describes the environment variables required to run the server.

Name	Required	Description	Default
`PGHOST`	No	Database host.	127.0.0.1
`PGPORT`	No	Database port.	5432
`PGUSER`	No	Database user.
`PGSSLMODE`	No	SSL mode.	disable
`PGDATABASE`	No	Database name.
`VAULT_ADDR`	No	Vault address (required when PGGUARD_SECRETS_PROVIDER=vault).
`VAULT_TOKEN`	No	Vault token (required when PGGUARD_SECRETS_PROVIDER=vault).
`PGGUARD_ROLE`	No	Role selecting reader, writer, migrator, or admin (config/policy.yaml).
`PGGUARD_AUDIT_DIR`	No	Directory for audit logs.	./data/audit
`PGGUARD_POLICY_PATH`	No	Path to policy.yaml.	./config/policy.yaml
`PGGUARD_SECRETS_PROVIDER`	No	Secrets provider: env or vault.

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tools`	{}

Functions exposed to the LLM to take actions

Name	Description
db_healthA	Ping Postgres and return server version
list_schemasA	List non-system schemas
list_tablesA	List tables, optionally filtered by schema
describe_tableC	Describe columns for a table
run_selectA	Run a single SELECT (max rows enforced; read-only role preferred)
run_dmlA	INSERT/UPDATE/DELETE when role allows; requires confirm:true
run_ddlA	CREATE/ALTER/DROP for migrator/admin; requires confirm:true; optional dry_run
explain_queryC	EXPLAIN a query; ANALYZE optional and gated by policy
get_audit_tailA	Return last N append-only audit events
whoamiA	Current agent role and effective policy

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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