Switch the active badge to player, game_master, observer, or none (Editor), gating tool access server-side for the session; always callable. Use when: entering the story, spectating, or stepping away to edit. Do NOT use when: answering a pending workflow decision — use respond.

Answer a pending workflow decision, atomically draining it and persisting the outcome to the Novel. Use when: the server emitted a [NEED_INPUT] prompt and the caller must choose. Do NOT use when: no decision is pending — use set_badge or a state tool instead.

Undo the most recent state mutation, restoring the prior per-badge snapshot. Use when: reverting a mistaken or unwanted change. Do NOT use when: re-applying an undone change — use redo.

Re-apply the most recently undone mutation, restoring the per-badge snapshot that undo removed. Use when: an undo was issued by mistake and the change should be restored. Do NOT use when: reverting a new change — use undo.

Show the available tools grouped by category (badge-filtered) or reassign a tool's category. Use when: the caller needs to discover tools, find one by keyword, or override a tool's category for a session. Do NOT use when: reading the current badge's guidance — use the badge_briefing prompt.

Manage player characters: create (quick or step-by-step), stage to roster, import, render a sheet, set the active entity, set personality/voice, send player signals, remove, or list roster characters. Use when: working with player characters. Do NOT use when: managing NPCs — use npc.

Execute a parser command, resolve a spatial intent, or suggest actions from intent. Use when: a player or narrator takes a physical action (execute), needs the outcome of a movement without mutating state (resolve), or wants intent mapped to tool calls (suggest). Do NOT use when: the GM inspects the model directly — use world or lore.

Manage the world model — rooms, things, and exits. Use when: creating, updating, removing, or bulk-converting locations and objects. Do NOT use when: navigating the world — use command (action: execute) or command (action: resolve).

Manage combat encounters in the active Novel. Use when: starting, advancing, ending a fight, or changing its participants. Do NOT use when: applying a status effect — use condition (action: apply).

Manage the active scene and its narrative framing. Use when: setting scene state (description, location, type), the narrative directive, party presence, AI autonomy, or when offering choices or resolving an oracle roll. Do NOT use when: recording a story beat — use story (action: record).

Manage non-player characters in the active Novel. Use when: introducing, revising, removing, listing, or reading NPCs. Do NOT use when: managing player characters — use character (action: create/import/sheet).

Manage countdown timers in the active Novel. Use when: starting, advancing, removing, or listing clocks. Do NOT use when: tracking a vow's progress — use vow (action: milestone).

Manage the active Novel's lore entries (world facts the narrator recalls). Use when: creating, revising, removing, toggling, grouping, suggesting, listing, exporting, or importing lore. Do NOT use when: recording a story beat — use story (action: record).

Manage mechanical or narrative conditions on entities. Use when: applying, removing, or listing conditions. Do NOT use when: recording damage or combat state — use combat (action: init/advance).

Manage organizations in the active Novel. Use when: creating, revising, removing, or listing factions and their progress clocks. Do NOT use when: tracking a faction's territory rooms — use world (action: create_room).

Manage directed relationships between entities, NPCs, or factions. Use when: setting or reading how two parties relate. Do NOT use when: tracking faction progress — use faction (action: update).

Track narrative vows, quests, and obligations with milestones. Use when: setting, advancing, resolving, forsaking, or listing vows. Do NOT use when: starting a clock timer — use countdown (action: set).

Resolve Fate-style actions with Fudge dice, aspects, Fate points, and stress. Use when: rolling 4dF against a difficulty, invoking or compelling aspects, spending or refreshing Fate points, or marking stress and consequences. Do NOT use when: resolving a d20 skill check — use the bound ruleset's roll tools or command (action: resolve).

Resolve Ironsworn-style actions: momentum, the action-roll move framework, and progress tracks. Use when: setting or burning momentum, rolling a move against two challenge dice, or marking and testing a progress track. Do NOT use when: managing vows — use vow (action: set).

Resolve Blades in the Dark-style actions: action rolls with position and effect, stress and trauma with resistance, and downtime recovery. Use when: rolling an action against the highest die, marking or resisting stress, or recovering during downtime. Do NOT use when: tracking a progress clock — use countdown (action: set).

Manage the story journal — typed narrative memories (decision, moment, revelation, bond, consequence). Use when: recording, editing, removing, listing, or promoting story beats. Do NOT use when: recording a durable world fact — use lore (action: set).

Manage Novel-scoped scratch notes, badge-scoped to game_master (default), player, or shared. Use when: storing scratch state the caller will reuse. Do NOT use when: recording durable world facts — use lore (action: set).

Manage session-level surfaces and diagnostics. Use when: recapping recent activity (recap), setting output verbosity (verbosity), reordering briefing sections (briefing_order), compressing the audit log (compress), or reporting server health (health). Do NOT use when: recording story content — use story (action: record).

Generate, load, or list adventure content. Use when: the GM wants a new adventure scaffold, a single encounter, or to load a prepared module. Do NOT use when: recording a story beat — use story (action: record).

Manage Novel save files: create, resume, switch, end, export, import, rename, describe, list, archive, unarchive, info, genre, clone, save_context, get_context, or checkpoint. Use when: handling a campaign's lifecycle, interchange, or return points. Do NOT use when: managing content inside the Novel — use the entity tools (npc, lore, faction, vow, story, note, etc.).

Manage ruleset packages: search a bound ruleset's index, install or remove a package, list installed packages, bind a Novel to a ruleset, or roll on a generation table. Use when: searching rules content, installing/removing/listing packages, binding a Novel, or rolling a table (roll). Do NOT use when: the Novel is ruleset-free — use command (action: suggest) or session (action: health). install/remove mutate installed-package state and are audited; search and roll are read-only.

Manage the cross-Novels codex library of reusable content (NPCs, factions, rooms, spells, adventures, voice profiles). Use when: storing reusable content for later import, or enumerating/reading/deleting it. Do NOT use when: storing Novel-scoped content — use lore (action: set) or note (action: set).

Manage synthesis content (voice examples, lore templates, action patterns, and other Ruleset Wisdom). Use when: running, reverting, listing, activating, deactivating, toggling, or player-authoring synthesis items. Do NOT use when: browsing the codex — use codex (action: list).