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shz-backend/.codex/skills/query-shz-highgo/SKILL.md
lapuda c3de38ee82 feat: add inspect-shz-logs skill for log inspection and monitoring 
- Implemented a new skill to inspect and follow SHZ backend logs with bounded read-only commands.
- Added scripts for viewing local and production logs, including options for following logs.
- Created references for log locations and usage guidelines.

feat: add query-shz-highgo skill for database querying

- Introduced a skill to query the SHZ HighGo database through an SSH gateway using a read-only psql workflow.
- Included scripts for executing SQL queries and schema discovery.
- Added connection details and usage instructions.

feat: add OutdoorFairBooth domain and mapper

- Created OutdoorFairBooth domain model with relevant fields and annotations.
- Implemented a mapper interface for physical deletion of records based on fair ID.

feat: create SQL scripts for cms_outdoor_fair_booth

- Added SQL script to create the cms_outdoor_fair_booth table and its associated sequence.
- Included comments for clarity and compatibility with historical data.
- Added a script to drop the cms_venue_booth table after migration confirmation.
2026-06-25 15:53:01 +08:00

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query-shz-highgo Query the SHZ HighGo Security Enterprise Edition database through its SSH gateway using a guarded read-only psql workflow. Use when Codex is working in the shz-backend project and needs to inspect database schemas, tables, columns, row counts, or application data; diagnose data-related behavior; or execute SELECT, WITH, SHOW, or EXPLAIN statements against the project's HighGo database.

Query SHZ HighGo

Use the bundled script to run read-only SQL through the configured SSH gateway.

Query workflow

  1. Form the narrowest useful query. Add a small LIMIT when inspecting rows.

  2. For unfamiliar tables, inspect information_schema.columns before selecting business data.

  3. Run:

    .codex/skills/query-shz-highgo/scripts/query.sh 'SELECT current_database(), current_user, current_schema()'

  4. Summarize the result and distinguish returned facts from inferences.

The script accepts only statements beginning with SELECT, WITH, SHOW, or EXPLAIN, rejects multiple statements, sets search_path to shz,public, enforces database-level read-only mode, and applies a 30-second timeout. Never bypass these controls or perform writes unless the user explicitly requests a separate write-capable workflow.

Schema discovery

List user tables:

.codex/skills/query-shz-highgo/scripts/query.sh "SELECT table_schema, table_name FROM information_schema.tables WHERE table_schema NOT IN ('pg_catalog', 'information_schema') ORDER BY 1, 2"

Inspect columns:

.codex/skills/query-shz-highgo/scripts/query.sh "SELECT column_name, data_type, is_nullable FROM information_schema.columns WHERE table_schema = 'shz' AND table_name = 'lowercase_table_name' ORDER BY ordinal_position"

HighGo may expose unquoted identifiers in lowercase and quoted identifiers with exact case. Query information_schema first when the spelling is uncertain.

Connection details

Read references/connection.md only when troubleshooting connectivity or updating the endpoint. Do not print, quote, or expose the password file.