io.github.flukeatzerocool/holonovel
NPM · HOLONOVEL
Holonovel MCP server: world-model base for tabletop RPG play (rooms, parser, narrative tools).
Available components
Last scanned (4 hours ago)
Scores higher than 92% of npm servers
Category Entertainment and Games
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 30 of 92 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to flukeatzerocool/holonovel). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 4 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability46
- 13% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Partial
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 14067 tokens (~182/item across 77 items; 37 tools + 40 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management87
- Stability check failed: the tool surface changed between 2026.10.3 and 2026.10.31: 4 tool removals, 0 breaking changes, 11 additions. See how to fix → Fail
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 37 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 39 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 82 to 87.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 76 to 82.
- 1 Nov 26 +15
- Malware scan: unverified → pass ▲ security
- 31 Oct 26 −16
- Malware scan: pass → unverified ▼ security
- Package version: 2026.10.26 → 2026.10.31 functional
- 28 Oct 26 +15
- Malware scan: unverified → pass ▲ security
- 27 Oct 26 −4
- Malware scan: pass → unverified ▼ security
- Security disclosure: unverified → pass ▲ functional
- Destructive annotations: 100 → pass functional
- Package version: 2026.10.25 → 2026.10.26 functional
- 26 Oct 26 0
- Security disclosure: pass → unverified ▼ functional
- 25 Oct 26 0
- Stability: fail → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: 11 → unverified ▼ functional
- Package version: 2026.10.22 → 2026.10.25 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/holonovel@2026.10.31
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | flukeatzerocool/holonovel |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/flukeatzerocool/holonovel/.github/workflows/publish.yml@refs/heads/main |
| Rekor log index | 3614824450 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:4898665cebac8005ecede1607d04a88be3d95352e66911f45c6c4fb90eb9575e2976db5889134bcb226e6ca7af2c82629dc456615003b1db245b7effa |
Background: How many MCP packages publish verified provenance →
Dependencies 92 packages
| Packages resolved | 92 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
open_session Open Play Session ~207
Open a play session by resuming a Novel, activating a badge, and returning a recap. novel selects the slug and badge the seat; both are optional and fall back to the active Novel and current badge. With no novel and no active Novel, it resumes the only Novel on the server (on a fresh install, the seeded starter), and refuses naming the available slugs when several exist. resume closes the current session window, switches the active Novel, and increments its session count; a badge change persists, is audited, and re-filters tools/list immediately; neither deletes prior Novel state. Session and badge changes are not undoable via manage_history. Use when: starting or resuming a session, especially after a restart. Do NOT use when: creating a Novel — use manage_novel (action: create); running a turn — use take_turn.
| Name | Type | Req | Description |
|---|---|---|---|
| badge | string | – | Badge to activate (open_session). |
| novel | string | – | Novel slug to resume (open_session). |
| Name | Type | Req | Description |
|---|---|---|---|
| status | string | yes | Machine-readable result status: OK, NEED_INPUT, WARNING, PARTIAL, or an error category (REQ-002, REQ-548c). |
| text | string | – | Human-readable text envelope mirroring the structured result (REQ-001, REQ-548a). |
No examples provided.
resolve_mechanic Resolve Mechanics ~732
Resolve uncertain actions across the host's base mechanics: Fate Fudge dice, aspects, Fate points, and stress; Ironsworn momentum, moves, and progress; Forged action rolls, stress, trauma, and downtime; and generic ruleset table rolls. Rolls and state changes persist to the Novel and are audited; a roll with no following write is flagged as an uncommitted roll. Revert the most recent mutation with manage_history (action: undo). fate_roll uses dF, ironsworn_move compares an action die against two challenge dice, and forged_action_roll takes the highest of a d6 pool. Use when: resolving a Fate, Ironsworn, or Forged mechanic, or rolling on a ruleset generation table. Do NOT use when: resolving a ruleset skill check — use the bound ruleset's roll tools; managing vows — use manage_vow (action: set).
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | roll (ruleset table), fate_* (Fate), ironsworn_* (Ironsworn), or forged_* (Forged in the Dark). |
| adds | number | – | Stat and bonuses added to the action die (ironsworn_move). |
| amount | number | – | Fate points (fate_point), stress (fate_stress, forged_stress, forged_downtime), or momentum (ironsworn_momentum); defaults to 1. |
| burn | boolean | – | Burn momentum to replace the action score (ironsworn_move). |
| consequence | string | – | Consequence to record or clear (fate_stress). |
| cost | number | – | Stress cost to resist (forged_stress); defaults to 2. |
| dice | string|number | – | Fudge dice notation (fate_roll) or dice pool size (forged_action_roll). |
| difficulty | number | – | Opposition to beat (fate_roll); defaults to 0. |
| effect | string | – | Effect (forged_action_roll); defaults to standard. |
| entity_id | string | – | Entity or NPC id (fate_aspect, fate_point, fate_stress, ironsworn_momentum, ironsworn_move, forged_stress, forged_downtime). |
| modifier | number | – | Skill rating added to the roll (fate_roll). |
| name | string | – | Aspect name, progress-track name, move name, action name, or consequence label. |
| op | string | – | Sub-operation for aspect, fate_point, stress, momentum, progress, or downtime. |
| position | string | – | Position (forged_action_roll); defaults to risky. |
| rank | string | – | Progress-track rank (ironsworn_progress). |
| seed | string | – | Deterministic seed (fate_roll, ironsworn_move, ironsworn_progress, forged_action_roll, roll). |
| shifts | number | – | Shifts to mark on a stress track (fate_stress); defaults to 1. |
| skill | string | – | Skill name for the roll label (fate_roll). |
| slug | string | – | Ruleset slug for a Novel-independent roll (roll). |
| table | string | – | Generation table to roll on (roll). |
| target | string | – | Aspect target: 'scene' or an entity/NPC id (fate_aspect); defaults to 'scene'. |
| ticks | number | – | Progress to mark (ironsworn_progress); defaults to 1. |
| track | string | – | Stress track to mark or clear (fate_stress). |
| Name | Type | Req | Description |
|---|---|---|---|
| status | string | yes | Machine-readable result status: OK, NEED_INPUT, WARNING, PARTIAL, or an error category (REQ-002, REQ-548c). |
| text | string | – | Human-readable text envelope mirroring the structured result (REQ-001, REQ-548a). |
No examples provided.
respond_decision Respond to Workflow Decision ~159
Answer a pending workflow decision, atomically draining it and persisting the outcome to the Novel. option must match one of the emitted choices; 'cancel' aborts the workflow and restores its pre-workflow snapshot, while any applied outcome is not reversible. The drain is mutating and audited, and a second call with no pending decision returns STATE_CONFLICT. 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.
| Name | Type | Req | Description |
|---|---|---|---|
| decision | string | yes | The canonical decision text the workflow is waiting on. |
| option | string | yes | The chosen option, or 'cancel' to abort the workflow and restore its snapshot. |
| Name | Type | Req | Description |
|---|---|---|---|
| status | string | yes | Machine-readable result status: OK, NEED_INPUT, WARNING, PARTIAL, or an error category (REQ-002, REQ-548c). |
| text | string | – | Human-readable text envelope mirroring the structured result (REQ-001, REQ-548a). |
No examples provided.
run_command Parser Command ~305
Run the spatial parser: execute a parsed command, resolve a movement outcome, or map an intent to tool calls. execute accepts free-form text, mutates world and entity state, persists, and is audited; a mistaken move is reversed by issuing the inverse command because no undo snapshot is taken. resolve computes the same movement without mutating, and suggest returns recommended calls without executing them; source and target apply only to perception queries. On a ruleset-bound Novel the parser is GM-only for navigation and mutation, while the Player badge keeps read-only perception commands. Use when: a player or narrator takes a physical action, needs a movement outcome without mutating, or wants intent mapped to tools. Do NOT use when: the GM creates or edits the model — use manage_world; durable world facts — use manage_lore.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | – | execute (parser), resolve (non-mutating intent), suggest (intent → tool calls), visibility (can one actor see another or a thing), or audibility (can one actor hear another). Defaults to execute. |
| command | string | – | The natural-language command (execute). |
| entity_id | string | – | Optional entity context (suggest). |
| intent | string | – | The intent to resolve or map (resolve/suggest). |
| source | string | – | Observing actor for visibility/audibility (defaults to the active entity). |
| target | string | – | Actor or thing being seen or heard (visibility/audibility). |
| Name | Type | Req | Description |
|---|---|---|---|
| status | string | yes | Machine-readable result status: OK, NEED_INPUT, WARNING, PARTIAL, or an error category (REQ-002, REQ-548c). |
| text | string | – | Human-readable text envelope mirroring the structured result (REQ-001, REQ-548a). |
No examples provided.
set_badge Set Active Badge ~139
Switch the active badge to player, game_master, observer, or none (Editor), gating tool access server-side for the active Novel; always callable. The badge is per Novel and switching re-filters tools/list immediately, so a narrower badge can revoke tools mid-task and switching back restores them; badge changes are mutating session state, audited, and reversible by switching back. Use when: entering the story, spectating, or stepping away to edit. Do NOT use when: answering a pending workflow decision — use respond_decision.
| Name | Type | Req | Description |
|---|---|---|---|
| badge | string | yes | The badge to activate: player, game_master, observer, or none (Editor). |
| Name | Type | Req | Description |
|---|---|---|---|
| status | string | yes | Machine-readable result status: OK, NEED_INPUT, WARNING, PARTIAL, or an error category (REQ-002, REQ-548c). |
| text | string | – | Human-readable text envelope mirroring the structured result (REQ-001, REQ-548a). |
No examples provided.
take_turn Take Play Turn ~178
Resolve a player intent through the parser and mint a turn handle for the story record. intent is free text parsed by the command resolver; entity_id optionally scopes the parse to the acting entity. The turn is read-only and non-persistent: no Novel state is mutated; the handle is session-scoped, single-use, and consumed by manage_story (action: record), though recording without it still works. Repeated calls mint fresh handles rather than resuming the prior one. Use when: taking a turn before recording its outcome. Do NOT use when: resolving a specific combat round — use manage_combat (action: advance); rolling a ruleset check — use resolve_mechanic (action: roll).
| Name | Type | Req | Description |
|---|---|---|---|
| entity_id | string | – | Acting entity id (take_turn). |
| intent | string | yes | Player intent to resolve (take_turn). |
| Name | Type | Req | Description |
|---|---|---|---|
| status | string | yes | Machine-readable result status: OK, NEED_INPUT, WARNING, PARTIAL, or an error category (REQ-002, REQ-548c). |
| text | string | – | Human-readable text envelope mirroring the structured result (REQ-001, REQ-548a). |
No examples provided.
How do I install the io.github.flukeatzerocool/holonovel MCP server?
io.github.flukeatzerocool/holonovel runs locally as an npm package, launched with npx -y holonovel. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · holonovel
claude mcp add flukeatzerocool-holonovel -- npx -y holonovel
What is the io.github.flukeatzerocool/holonovel MCP server?
io.github.flukeatzerocool/holonovel is an MCP server listed in the public MCP registry as io.github.flukeatzerocool/holonovel. Holonovel MCP server: world-model base for tabletop RPG play (rooms, parser, narrative tools). This page covers its npm package (holonovel).
Is the io.github.flukeatzerocool/holonovel MCP server safe to use?
io.github.flukeatzerocool/holonovel scores 88 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.flukeatzerocool/holonovel MCP server expose?
io.github.flukeatzerocool/holonovel exposes 37 tools: set_badge, respond_decision, manage_history, manage_character, run_command, and 32 more. Their descriptions and schemas cost roughly 13,734 tokens of context every time the server is loaded.
Is the io.github.flukeatzerocool/holonovel MCP server still maintained?
io.github.flukeatzerocool/holonovel is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.flukeatzerocool/holonovel MCP server under?
io.github.flukeatzerocool/holonovel declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.