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Updated today

by AntTheLimey

gm-apprentice

TTRPG Game Master skills for Claude

  • Active — Updated in the last 14 days
Works with
  • Claude
View on GitHub (opens in a new tab)

21 GitHub stars (21)

Stars gained per day · daily snapshots since Nov 12
Stars gained per day, Nov 12 to Nov 13: +1 in total; the busiest day was Nov 13 with +1 stars.Nov 13: +1 stars
Stars gained between daily snapshots
PeriodNew stars
Nov 13+1
  • 11 skills (11 skills found in its SKILL.md files)
  • 3 forks (3 forks)
  • Today last update (Last updated today)

Install

Skills CLI

npx skills add AntTheLimey/gm-apprentice

Asks which skills and agents to install. Just one: npx skills add AntTheLimey/gm-apprentice --skill campaign-organizer — add -g for every project.

Claude Code

git clone https://github.com/AntTheLimey/gm-apprenticecp -r "gm-apprentice/skills/campaign-organizer" ~/.claude/skills/

Copies the campaign-organizer skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add AntTheLimey/gm-apprentice

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • campaign-organizer

    Organize TTRPG campaign content into interlinked markdown files with relationship graphs and a chapter/session/scene hierarchy, in an Obsidian vault or plain folder. Use to organize campaign files, extract entities from campaign docs into linked notes, add wiki-links or relationship metadata, set up graph visualization, parse chapter outlines, or manage campaign structure. Trigger on 'organize my…

    skills/campaign-organizer/SKILL.md on GitHub (opens in a new tab)
  • campaign-qa

    Audit and repair TTRPG campaign vault integrity: canon audits, timeline validation, name-similarity checks, clue redundancy, graph health and world-rule consistency, then a fix-or-dismiss decision with the GM on each finding. Use to check a campaign for contradictions, validate timeline consistency, find duplicate or confusingly similar names, verify the Three Clue Rule, audit graph health or orp…

    skills/campaign-qa/SKILL.md on GitHub (opens in a new tab)
  • publish-site

    Publish a gm-apprentice campaign vault as a static site on GitHub Pages or Cloudflare Pages, and run the at-table change-request loop that lets players request sheet edits during play. Use to build, publish, update or rebuild a campaign website, share a campaign with players, set up GitHub Pages or Cloudflare Pages, troubleshoot a broken build, migrate the site to a new vault schema, give charact…

    skills/publish-site/SKILL.md on GitHub (opens in a new tab)
  • session-play

    Use when the GM is actively running a TTRPG session and needs fast help at the table — quick lookups, rules questions, on-the-fly NPCs and content, or capturing play notes. Speed is everything. Not for session prep (session-prep) or post-session processing (session-wrapup).

    skills/session-play/SKILL.md on GitHub (opens in a new tab)
  • session-prep

    Use when a GM is preparing for an upcoming TTRPG session — prep or plan my session, getting ready for next week, what should I prepare — or reconciling last session's wrap-up with what comes next (reconcile, what did we skip, what changed), or reviewing a prep plan. Not for during-play help (session-play) or post-session wrap-up (session-wrapup).

    skills/session-prep/SKILL.md on GitHub (opens in a new tab)
  • session-wrapup

    Use when a TTRPG session has just ended and the GM needs to wrap up or process play notes — recaps, entity file updates, timeline events, and what carries forward to the next session. Turns raw play notes into organized canon. Not for session prep (session-prep) or during-play help (session-play).

    skills/session-wrapup/SKILL.md on GitHub (opens in a new tab)
  • shared

    Scripts, templates and references the gm-apprentice skills use. Install it with them; it does nothing on its own.

    skills/shared/SKILL.md on GitHub (opens in a new tab)
  • the-midwife

    Guided adventure creation through creative conversation: campaign concepts, one-shots and arcs from a vague idea or from nothing, building on an existing vault when one is present. Produces an adventure brief and scaffolds the vault for Session 0. Trigger on: 'new campaign', 'new adventure', 'I want to run a game', 'help me create', 'adventure idea', 'campaign concept', 'one-shot idea', 'what sho…

    skills/the-midwife/SKILL.md on GitHub (opens in a new tab)
  • ttrpg-expert

    TTRPG rules advisor and content engine for CoC 7e, GURPS 4e, Forged in the Dark, D&D 5e (2024) and Pathfinder 2e (Remaster): rules lookups, character building and point-budget validation, NPCs and stat blocks, scenes, encounters, scenarios, locations, factions, items, handouts, random inspiration, continuity and plot-hole checks, canon verification, PC arc and spotlight analysis, fail forward and…

    skills/ttrpg-expert/SKILL.md on GitHub (opens in a new tab)
  • vault-ingest

    Ingest old campaign materials — notes, character sheets, images, transcripts, spreadsheets — into a structured vault: sort the material, interview the GM to recover what actually happened, and synthesize inputs for downstream skills. Use for bootstrapping a vault from old notes, adding a discovered character sheet mid-campaign, or reconstructing past sessions from archived transcripts. Trigger on…

    skills/vault-ingest/SKILL.md on GitHub (opens in a new tab)
  • mobrpg-sync

    Use when the GM wants to sync a gm-apprentice vault with a mobRPG world — seeing what's new in mobRPG, pushing vault entities and authored descriptions up as mobRPG suggestions, pulling ratified mobRPG canon and description prose back into the vault, migrating a legacy vault onto mobrpg: nodes, or maintaining the vault↔mobRPG type mapping. Drives the mobrpg CLI with judgment and a preview-before-…

    tools/mobrpg/skill/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.