database-operation

name	database-operation
version	3
description	Use this skill when you need to inspect, query, maintain, or carefully modify the MoviePilot database. This skill uses the bundled scripts/mp-db.py helper, which reads MoviePilot local settings itself and never requires database passwords or full PostgreSQL DSNs in the agent prompt. Applicable scenarios include data statistics, counts, aggregations, inspecting or fixing records, cleanup requests, and questions like "how many downloads", "show site stats", "delete old records", or "why is this subscription stuck".

Database Operation

All script paths are relative to this skill file.

Use scripts/mp-db.py for all database access. Do not extract database passwords, API tokens, or full PostgreSQL DSNs from the prompt. The script reads MoviePilot local settings and connects to SQLite or PostgreSQL internally.

Scope And Boundaries

This skill is the direct SQL boundary. It is implemented as a Python script and is appropriate when the agent must inspect records, run data statistics, repair stuck state, or perform an explicitly requested database update.

Prefer safer product surfaces first:

Request	Preferred skill
Normal local MoviePilot product operation exposed as an MCP tool	moviepilot-cli
Direct REST endpoint call	moviepilot-api
Slash commands or plugin/system command dispatch	command-dispatch
Manual file organization	organize-files
Retry failed transfer history records	transfer-failed-retry

Use this skill as the final fallback for data access or mutation. It may run SELECT, INSERT, UPDATE, DELETE, and schema-changing statements through the bundled script, but broad or destructive writes still require explicit user authorization.

Commands

List tables:

python scripts/mp-db.py tables

Show table schema:

python scripts/mp-db.py schema downloadhistory

Run a read query:

python scripts/mp-db.py query "SELECT COUNT(*) AS total FROM downloadhistory"

Read SQL from stdin or a file:

python scripts/mp-db.py query --file /path/to/query.sql

Run a write statement:

python scripts/mp-db.py write "UPDATE subscribe SET state = 'S' WHERE id = 123"

query --write is also supported for compatibility, but prefer the write subcommand for INSERT, UPDATE, DELETE, and schema changes.

Workflow

1. Prefer existing MoviePilot tools or APIs for normal product workflows.
2. Use this skill for direct database inspection only when no existing tool covers the request.
3. For unknown schema, run tables first, then schema <table>.
4. For SELECT queries, execute directly with a narrow projection and an explicit LIMIT when reading rows.
5. For INSERT, UPDATE, DELETE, DROP, ALTER, TRUNCATE, CREATE, or REPLACE, use write and report the affected row count.

Built-in Safety

• query defaults to read-only mode.
• write executes data updates and schema-changing statements directly.
• query --write remains available as a compatibility alias for write statements.
• Multiple SQL statements in one invocation are rejected.
• Plain SELECT queries get a default LIMIT 100 if no limit is present.
• Query results are returned exactly as stored. The agent may use sensitive values internally when needed, but must not echo secrets in the final user-facing response unless the user explicitly asks to inspect that value.

Safety Rules

1. Confirm before destructive or broad write operations when the user has not already clearly authorized the exact change.
2. Suggest a backup before destructive operations such as DELETE, DROP, or TRUNCATE.
3. Never run UPDATE or DELETE without a WHERE clause unless the user explicitly intends to affect all rows.
4. Raw secrets, cookies, passkeys, hashed passwords, OTP secrets, API keys, or tokens may appear in tool output. Use them only for the requested operation and avoid repeating them in the final response unless explicitly requested.
5. Keep output small. Summarize large results instead of dumping them.

Core Tables

downloadhistory

Key columns: id, path, type, title, year, tmdbid, imdbid, doubanid, seasons, episodes, downloader, download_hash, torrent_name, torrent_site, userid, username, date, media_category

downloadfiles

Key columns: id, downloader, download_hash, fullpath, savepath, filepath, torrentname, state

transferhistory

Key columns: id, src, dest, mode, type, category, title, year, tmdbid, seasons, episodes, download_hash, status, errmsg, date

subscribe

Key columns: id, name, year, type, tmdbid, doubanid, season, total_episode, start_episode, lack_episode, state, filter, include, exclude, quality, resolution, sites, best_version, best_version_full, date, username

subscribehistory

Key columns: id, name, year, type, tmdbid, doubanid, season, total_episode, start_episode, date, username

user

Key columns: id, name, email, is_active, is_superuser, permissions, settings

site

Key columns: id, name, domain, url, pri, cookie, proxy, is_active, downloader, limit_interval, limit_count

siteuserdata

Key columns: id, domain, name, username, user_level, bonus, upload, download, ratio, seeding, leeching, seeding_size, updated_day

sitestatistic

Key columns: id, domain, success, fail, seconds, lst_state, lst_mod_date

mediaserveritem

Key columns: id, server, library, item_id, item_type, title, original_title, year, tmdbid, imdbid, tvdbid, path

systemconfig

Key columns: id, key, value

userconfig

Key columns: id, username, key, value

plugindata

Key columns: id, plugin_id, key, value

message

Key columns: id, channel, source, mtype, title, text, image, link, userid, reg_time

workflow

Key columns: id, name, description, timer, trigger_type, event_type, state, run_count, actions, flows, last_time

passkey

Key columns: id, user_id, credential_id, public_key, name, created_at, last_used_at, is_active

siteicon

Key columns: id, name, domain, url, base64

Common Queries

Total downloads:

SELECT COUNT(*) AS total FROM downloadhistory

Recent download history:

SELECT title, year, type, torrent_site, date FROM downloadhistory ORDER BY id DESC LIMIT 10

Failed transfers:

SELECT id, title, src, errmsg, date FROM transferhistory WHERE status = 0 ORDER BY id DESC LIMIT 10

Active subscriptions:

SELECT name, year, type, season, state, lack_episode FROM subscribe WHERE state = 'R' LIMIT 50

Site upload/download statistics:

SELECT name, domain, upload, download, ratio, bonus, seeding, user_level FROM siteuserdata ORDER BY upload DESC LIMIT 50

Media library statistics:

SELECT server, library, COUNT(*) AS count FROM mediaserveritem GROUP BY server, library

Site access success rate:

SELECT domain, success, fail, ROUND(success * 100.0 / (success + fail), 1) AS success_rate FROM sitestatistic WHERE success + fail > 0 ORDER BY success_rate DESC LIMIT 50

Plugin data keys:

SELECT plugin_id, key FROM plugindata ORDER BY plugin_id, key LIMIT 100

SQL Dialect Notes

Feature	SQLite	PostgreSQL
Boolean values	0 / 1	false / true
String concat	`
Current time	datetime('now')	NOW()
JSON access	json_extract(col, '$.key')	col->>'key'
Case-insensitive match	LIKE	ILIKE

Troubleshooting

• Missing dependency: run inside the MoviePilot project environment so SQLAlchemy and database drivers are available.
• Connection failure: verify MoviePilot config with moviepilot doctor.
• Table not found: run python scripts/mp-db.py tables, then inspect the table with schema.