TiddlyWiki MCP Server
Provides AI assistants with access to TiddlyWiki wikis via HTTP API, supporting tiddler management (create, update, delete, search) and semantic search capabilities using Ollama embeddings for natural language queries.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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ppetru
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
jsdiff has a Denial of Service vulnerability in parsePatch and applyPatch
AUTH_HEADERX-Oidc-Username HTTP header for authentication (can be any header your TiddlyWiki expects)AUTH_USERmcp-user Username for TiddlyWiki API requestsEMBEDDINGS_DB_PATH./embeddings.db SQLite database path for embeddingsEMBEDDINGS_ENABLEDtrue Enable/disable semantic searchLOG_DEBUGMCP_PORT3000 HTTP server port (when using http transport)MCP_TRANSPORTstdio Transport mode: stdio or httpOLLAMA_MODELnomic-embed-text Embedding model nameOLLAMA_URLTIDDLYWIKI_URLURL of your TiddlyWiki server (e.g., http://localhost:8080)PORTTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
4/4 tools missing one or more hints — search_tiddlers (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); update_tiddler (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_tiddler (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool test coverage
Only 1/4 tools referenced in tests (25%)
Write tests that reference each tool by name so every tool has at least one test.
Production dependencies are patched
0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.25.1 (high), @modelcontextprotocol/sdk@1.25.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dev dependencies
1 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
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