[bug] Route extractor over-fits: GraphQL query literals, whole config-file contents, and regex literals become `Route` nodes

[ecosuper2025]

Version: codebase-memory-mcp v0.8.1 (Windows, compiled .exe)
Project: real-world repo, 93,315 nodes, 996 Route nodes

Summary

Route extraction classifies many non-route strings as routes. On our repo, 46 of 996 routes are clearly junk, and the empty-source bucket mixes real HTTP endpoints with regex/path string literals.

Repro

search_graph(label="Route") then group by source:

source	count	what they actually are
decorator	41	✅ real Flask/Django route decorators (correct)
"" (empty)	909	real API paths from frontend HTTP calls + regex/path literals
graphql	34	❌ entire GraphQL query string literals (query { categoryList {...} }) turned into one Route node each
infra	12	❌ the entire text of .codex/agents/*.toml files turned into a single Route node

Empty-source junk samples (method=ANY, degree 0):
/.{2}/g, /<table/i (JS regex literals), /_VBA_PROJECT_CUR/VBA/dir, /::/, /.well-known/openid-configuration.

Minimal example

// a JS regex literal — NOT a route
const re = /<table/i;

# a query string passed to a client — NOT a route
query { products(search: "x") { items { sku } } }

Both currently produce Route nodes.

Expected

• Route extraction should require an actual route declaration (decorator/router registration/framework binding), not "string contains slashes" or "file looks like config".
• GraphQL query literals should not be Route (a GraphQLOperation label would be fine).
• Config/agent files (.codex/*.toml, *.md) should not have their whole contents emitted as a single Route.
• At minimum: don't classify regex literals (/…/[gimsuy]) as routes.

Workaround (consumer side)

Filter WHERE r.source='decorator' OR (r.method IS NOT NULL AND r.method <> 'ANY') → 996 → 347, junk removed. But this loses real decorator-less routes inconsistently; a clean extractor is preferable.

Related

Distinct from the exclude-config issues (#500/#510) — this is mis-classification of content, not indexing of build artifacts.