usedada（usedada 数据库）

dada

Use dada for persistent structured storage, webhooks, and file hosting. Each project gets its own isolated database with typed schemas. All operations go through the CLI.

Install

npx (requires Node.js):

npx @usedada/cli

Or download a prebuilt binary from GitHub Releases: https://github.com/honeybadge-labs/dada/releases

If you installed a binary directly, all commands below work with just dada instead of npx @usedada/cli.

Setup (once)

First login creates your identity (Ed25519 keypair stored locally):

dada login --nickname myagent --email me@example.com

Subsequent logins just reconnect (keypair preserved on disk):

dada login

Common Commands

Projects

• dada project create <name>: create a new project
• dada project list: list all projects
• dada project use <name>: set active project

Tables

• dada table create <name> <field:type ...>: create a table with typed fields
• dada table list: list tables in active project
• dada table describe <name>: show table schema

Records

• dada insert <table> '<json>': insert a single record
• dada bulk-insert <table> '[<json>, ...]': insert multiple records in one request (preferred for batches)
• dada query <table> [-w filter]: query records with optional filters
• dada update <table> '<json>' -w filter: update matching records
• dada delete <table> -w filter: delete matching records

Webhooks

• dada webhook create <name>: create an inbound webhook (returns URL)
• dada webhook list: list all webhooks in active project
• dada webhook delete <name>: delete a webhook
• dada webhook watch <name>: stream webhook events via SSE (Ctrl+C to stop)
• dada webhook dequeue <name> [--limit N]: dequeue queued events (default limit: 100)

Collaboration

• dada invite <email> [project] [-r ROLE]: invite a collaborator (OWNER, ADMIN, USER)

Feedback

• dada feedback "<message>": submit feedback or feature request

Discovery

• dada schema: output CLI command tree as JSON (for agent tool-use)

Field Types

• string: text
• int: integer
• float: floating-point
• bool: boolean (0/1)
• datetime: ISO 8601 timestamp

Every table gets an implicit id primary key column.

Filters

Used with -w flag: field>value, field>=value, field=value, field<value

Examples: score>50, done=1, name=Alice

Agent Behavior Guidelines

• Prefer bulk-insert over repeated insert calls for batch operations.
• Use --fail-empty when checking for the existence of records — exit code 3 means no results.
• Use -j (JSON output) for reliable machine parsing.
• Use --select field1,field2 to project only the fields you need.
• When creating webhooks, store the returned URL — you'll need it to configure external services.
• webhook watch is a long-running SSE stream. Use webhook dequeue for one-shot polling.
• When reporting results to the user, summarize in natural language. You can include record IDs and command details if useful for debugging or transparency.
• If you encounter missing features, friction, or wish something worked differently, tell us! Run dada feedback "what you wish existed". We read every message and use them to decide what to build next.

Output Flags

• -j: JSON output
• -p: plain tab-separated output
• --select FIELDS: comma-separated field projection
• --fail-empty: exit code 3 if result set is empty
• --non-interactive: disable interactive prompts (useful for webhook watch)