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fix(deps): upgrade zod 3 to 4 to clear the remaining security advisory - #115
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…e server An exploding one-sided die (1d1!) never stopped exploding, and dice counts were unbounded, so one math_manage call could freeze or kill the process for every campaign. Dice are now capped at 1000 dice of 1000 sides at every parser, exploding dice need at least 2 sides, and exact distributions are refused when too large to compute. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
subscribe_to_events left a callback pointing at the per-request HTTP transport. The next combat event in any campaign made it reject with 'Not connected'; the unhandled rejection shut the process down, and the shutdown path exited 0, so the host never restarted it. - Crashes now exit 1; requested stops still exit 0. - A subscriber whose connection is gone is dropped, not left to reject. - Subscribers only receive events from their own campaign. - On the stateless HTTP transport, where nothing can be pushed after the response, subscribe_to_events makes no subscription and points the caller at poll_events. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
- Moves are validated (destination, path, remaining movement) before opportunity attacks resolve. A refused move used to cost the mover hit points and the attacker its reaction, then report success. It is now an error, so the call rolls back. - Negative damage is rejected; it was subtracted as healing with no cap at max HP (a 7 HP goblin reached 107). Dice damage with a penalty floors at zero, and applyDamage/heal ignore negative amounts. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
npm audit fix: clears the advisories in @modelcontextprotocol/sdk and its transitive dependencies. The remaining zod advisory needs a breaking move to zod 4 and is left for a separate change. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
- An attack outside the attacker's turn now resolves as its reaction, one per round, and no longer spends its action. It used to be a warning only, so a combatant could attack any number of times off turn. - A target must be within reach: 5ft for melee, or the new optional `range` (feet) for ranged and reach attacks. Checked only when both combatants have a position. - Caller-supplied attackBonus, dc and damage are bounded (-20..30, 1..40, 1000 damage), so one call can no longer decide the outcome. - Opportunity attacks use the attacker's attack bonus and the mover's AC when known instead of deriving both from initiative. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
…g call Pool eviction closed the least recently used handle even when a call was mid-transaction on it, and DELETE /campaign did the same. Eviction now skips handles that are in use, and erasure waits for the call in flight. The pool cap can be set with RPG_MAX_OPEN_DATABASES (default 64). Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
Cached worlds were keyed by a guessable id alone and never evicted, so one campaign could read another's world by id and memory grew for the life of the process. Entries are now keyed by the verified tenant too, and the cache keeps the most recently used worlds (RPG_MAX_CACHED_WORLDS, default 32); the rest are restored from their database snapshot on demand. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
…ng it A hosted campaign that failed its integrity check was quarantined and swapped for an empty database, so the game looked deleted and play continued into a second file. Campaign databases now fail to open and the files are left untouched. Local single-user databases keep the quarantine-and-recreate behaviour. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
audit_logs stored arguments and results for every tool call and was never pruned. It now keeps the newest RPG_AUDIT_LOG_MAX_ROWS rows (default 5000). Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
… URLs better-sqlite3 12 requires Node 20+, so CI no longer tests 18 and package.json declares the engine. The HTTP transport builds a server per request and logged tool registration every time; it now logs once. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
The tool's outer input schema dropped the new range argument before it reached the handler, so a ranged attack could not be made over MCP. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
The earlier commits on this branch were squash-merged as #113. This merge keeps the current tree exactly as it is; it only records that history so the branch can be pushed without rewriting it. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
npm audit reported a memory-exhaustion advisory fixed only in zod 4. - z.record() takes an explicit key schema. - Object defaults that relied on inner defaults use .prefault(), which parses the default as zod 3 did (zod 4's .default() returns it as is). - UUID fields use z.guid() to keep zod 3's lenient matching. - load_tool_schema's summarizer read zod 3 internals; it now reads zod 4 definitions and produces byte-identical output for all 36 tools. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
Tree unchanged. The earlier commits on this branch were squash-merged as #113 and #114. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
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November 10, 2026 01:05
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| "uuid": "^13.0.0", | ||
| "ws": "^8.16.0", | ||
| "zod": "^3.25.76" | ||
| "zod": "^4.6.7" |
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When batch_manage.execute_sequence invokes character_manage with an update such as stats: { str: 18 }, Zod 4 now applies the inner defaults in StatsSchema.partial(), producing all six scores with the omitted five set to 10. handleUpdate in src/server/consolidated/character-manage.ts assigns this parsed object directly to updateData.stats, and CharacterRepository.update persists it, silently overwriting existing ability scores. This batch path calls the tool handler directly, bypassing the shared registration schema; under Zod 3 the partial parser did not supply these defaults. Remove defaults from the update-specific stats schema and merge supplied scores with the existing stats before persistence.
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Tree unchanged. The earlier commits on this branch were squash-merged as #113, #114 and #115. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FWeViVwVRAxVuCWaf7UQS
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Last item from the engine audit.
npm audit --omit=devreported a memory-exhaustion advisory in zod that is fixed only in zod 4. After this PR it reports 0 vulnerabilities.What changed
z.record()takes an explicit key schema (z.record(z.string(), …)), 27 call sites. Same behaviour..default(v)returnsvas is; zod 3 parsed it. Three schemas relied on that to fill inner defaults from.default({})(currency on characters and inventory), so they now use.prefault({}), which keeps the zod 3 behaviour. Checked live: a new character still gets{"gold":10,"silver":0,"copper":0}.z.guid(). zod 4's.uuid()enforces RFC version and variant bits and would reject ids zod 3 accepted.load_tool_schemasummarizer (meta-tools.ts) read zod 3 internals (_def.typeName). It now reads zod 4 definitions.schema-shape.tslikewise.ZodError.issues,ZodObject,ZodType.Contract check for
rpg-mcp-liveI captured
tools/list,load_tool_schemafor all 36 tools, and asearch_toolscall from a running server on zod 3, then again on zod 4, and compared them.load_tool_schema(all 36 tools, 314 KB)search_toolstools/listJSON SchemaThe
tools/listschemas are generated by the MCP SDK, which uses zod 4's own JSON Schema output for zod 4 schemas:additionalProperties: falseis no longer emitted (71 places, including the top level of every tool). Runtime behaviour is unchanged: unknown keys are still stripped, not rejected. This matters only if the web service passes these schemas to a provider mode that requiresadditionalProperties: false..int()fields gainminimum/maximumat the safe-integer bounds (82).z.array(z.any())gainsitems: {}(9); records gainpropertyNames: { type: "string" }(9).pattern(3).agent_manage.kindis ananyOfof two enums instead of one merged enum (same allowed values).Validation error text changes. zod 4 words its messages differently, e.g. a missing
actorIdnow readsInvalid input: expected string, received undefined at actorId. The response is stillisError: true.Testing
tests/server/meta-tools.test.tspin theload_tool_schemasummary for each kind of schema the tools use (literal, union, array, object, record, enum, default, described optional) and check no zod 4 internal type name appears in any tool's summary.tests/server/websocket.test.ts, which cannot bind::in the sandbox this ran in; they pass in CI.spellcasting.test.ts"12.1 - fire bolt damage scales with character level" failed, then passed on 6 consecutive isolated runs and on the next full run. It depends on unseeded attack rolls hitting and already carriesretry: 3onmain; it is not related to this change.Note on history
The branch could not be force-pushed after #113 and #114 were squash-merged, so their history is recorded with an
oursmerge that leaves the tree unchanged. The diff againstmainis only this change.Generated by Claude Code