{
  "$schema": "https://agents-txt.com/schema/agents-json/v1.0.json",
  "version": "1.0",
  "standard": "https://agents-txt.com",
  "site": {
    "name": "pg.ddx.io",
    "url": "https://pg.ddx.io",
    "description": "Free, read-only, public mirror of the PostgreSQL community archives since 1991: every mailing list, the git history of postgres and its ecosystem, commitfest, buildfarm, docs and wiki, cross-linked from discussion to commit. No login, no API key."
  },
  "mcp": [
    {
      "url": "https://pg.ddx.io/mcp",
      "type": "streamable-http",
      "description": "Anonymous, read-only tools over the whole archive: retrieve_context (cited passages within a token budget), hybrid_search, get_thread, get_message, git_search, commit_history, plus commitfest, buildfarm, docs, wiki and code-intelligence tools. Reference: https://pg.ddx.io/mcp-tools"
    }
  ],
  "skills": [
    {
      "url": "https://pg.ddx.io/skills/PG-HACKER.md",
      "description": "Contribute to PostgreSQL core: patches, reviews, commitfest, tracing a commit to its pgsql-hackers thread and back."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-USER.md",
      "description": "Use PostgreSQL as an app developer or hands-on DBA: how-to answers, documented behaviour, pgsql-general and pgsql-bugs."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-ADMIN.md",
      "description": "Operate PostgreSQL: replication, backup, HA, upgrades, vacuum, tuning, pgsql-admin and pgsql-performance."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-SQL.md",
      "description": "Write and understand SQL as PostgreSQL implements it: standard conformance, planner behaviour, JSON/arrays/windows."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-PLPGSQL.md",
      "description": "Server-side programming: PL/pgSQL and the other procedural languages, functions, procedures, triggers."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-DOC.md",
      "description": "Work with the documentation: cite the manual as authority, or write a doc patch; the SGML source and pgsql-docs."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-TEST.md",
      "description": "PostgreSQL's test suites: pg_regress, TAP, isolation tests, the buildfarm, and test-design discussion."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-EXTENSIONS.md",
      "description": "Build and use extensions: control files, upgrade scripts, C and pgrx, index access methods and hooks."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-COMMUNITY.md",
      "description": "The community and process: contribution history, roles, commitfest and release flow, attribution."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-WRITING.md",
      "description": "Write in the project's voice: commit-message style and trailers, patch submission, mailing-list etiquette."
    },
    {
      "url": "https://pg.ddx.io/skills/PG-RESEARCH.md",
      "description": "Historical and empirical research: bulk access by git/mbox/IMAP/NNTP, the Berkeley archive, provenance and citation."
    }
  ]
}