fix(graph): route wiki/<flat>.md to Type=knowledge, not Type=hall with filename-as-wing
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classifyByPath had a hole: paths like wiki/index.md or wiki/<slug>.md
(direct children of wiki/, no subdirectory) hit the default branch and
wrote Wing=parts[1] — which IS the filename, not a wing. Symptom in
brain_entities: rows like (slug=index, wing=index.md) and
(slug=autobe-..., wing=autobe-evaluation-pattern-....md).

Fix: when len(parts) < 3 (no subdirectory at all), fall through to
Type=knowledge and let frontmatter set wing/hall if present.

Add brain/eval/ artifacts at the same time:
- qa-2026-05.md — 20 hand-authored Q→expected-slug pairs covering the
  homelab knowledge corpus across mcp, dex, gitops, postgres, go,
  models, methodology
- score.py — calls brain_query for each pair, scores top-1 + top-3,
  emits per-question detail. BRAIN_MCP_TOKEN via env.

Pre-fix baseline against the live brain: top-1 = 20% (4/20),
top-3 = 65% (13/20). Six hard misses where the expected slug doesn't
even land in the top-5.

Used to gate the phase 2 DIKW redesign (infra#62 follow-up): if
phase 1 fixes (this parser fix + 20 backlink authoring on top
orphans) lift top-1 by <10 absolute points, structure is the
bottleneck and the tier redesign is justified.
This commit is contained in:
Mathias
2026-05-24 22:33:04 +02:00
parent 72be87b4e7
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# baseline-pre-fix — 20 questions, k=5
top-1 hit rate: 4/20 = 20%
top-3 hit rate: 13/20 = 65%
## per-question detail
· rank=3 expected=dex-in-memory-storage-wipes-oauth-tokens-on-every-pod-restart
q: how do I stop dex from logging users out on every pod restart?
1. homelab-network-perimeter-model
2. 2026-05-12-koala-machine-state
3. dex-in-memory-storage-wipes-oauth-tokens-on-every-pod-restart <-- expected
4. infra-litellm-absorption-2026-05-16
5. Financial Sentiment Analysis on Stock Market Headlines With FinBERT & HuggingFace
★ rank=1 expected=postgres-least-privilege-migration-tenant-grant-bypass-2026-05
q: my postgres-exporter broke after revoking PUBLIC CONNECT — why?
1. postgres-least-privilege-migration-tenant-grant-bypass-2026-05 <-- expected
2. infra-litellm-absorption-2026-05-16
3. brain-mcp-activation-runbook
4. extension-version-lags-platform-major-upgrade
5. ntfy-deny-all-rollout-ordering-keep-alert-pipeline-live-during-auth-flip
★ rank=1 expected=homelab-network-perimeter-model
q: when is a NodePort acceptable vs needing a public ingress with bearer gate?
1. homelab-network-perimeter-model <-- expected
2. qwen3-thinking-model-empty-content-trap
3. mcpclient-empty-token-silent-401-envfrom-missing-key
4. 2026-05-12-koala-machine-state
5. koala-llama-swap-native-tool-calls-survey-2026-05
· rank=3 expected=exit-255-unknown-reason-not-oom
q: what does container exit code 255 with reason Unknown mean?
1. qwen3-thinking-model-empty-content-trap
2. infra-litellm-absorption-2026-05-16
3. exit-255-unknown-reason-not-oom <-- expected
4. mcpclient-empty-token-silent-401-envfrom-missing-key
5. koala-llama-swap-native-tool-calls-survey-2026-05
· rank=3 expected=gitea-push-mirror-cannot-create-remote-repo-needs-pre-existing-github-repo
q: can gitea push-mirror create the github repo automatically?
1. infra-litellm-absorption-2026-05-16
2. Autoresearch
3. gitea-push-mirror-cannot-create-remote-repo-needs-pre-existing-github-repo <-- expected
4. adr-new-project-gitea-first-github-mirror
5. adr-github-as-primary-remote
✗ rank=0 expected=flux-healthcheck-stale-on-resource-removal
q: a flux kustomization is stuck after I removed a resource — why?
1. qwen3-thinking-model-empty-content-trap
2. 2026-05-12-koala-machine-state
3. homelab-architecture-principles-2026-05
4. gitea-mcp: full stack shipped end-to-end (2026-05-05)
5. k8s-configmap-mount-no-reload-needs-pod-restart
· rank=2 expected=go-bytes-buffer-bytes-reset-aliasing-trap
q: the bytes buffer aliasing trap with Reset in a loop — what's the bug?
1. Financial Sentiment Analysis on Stock Market Headlines With FinBERT & HuggingFace
2. go-bytes-buffer-bytes-reset-aliasing-trap <-- expected
3. homelab-security-chains-not-bugs
4. training-on-rtx-5070-pretraining-vs-finetuning
5. Hash Encoding
★ rank=1 expected=homelab-architecture-principles-2026-05
q: what are the homelab architecture principles from may 2026?
1. homelab-architecture-principles-2026-05 <-- expected
2. homelab-network-perimeter-model
3. Claude Managed Agents — architecture notes relevant to homelab agent platform
4. homelab-core-glossary
5. 2026-05-12-koala-machine-state
✗ rank=0 expected=2026-05-04-sops-age-key-from-flux-cluster
q: where does the sops age private key live in the cluster?
1. 2026-05-12-koala-machine-state
2. homelab-network-perimeter-model
3. postgres-least-privilege-migration-tenant-grant-bypass-2026-05
4. brain-mcp-activation-runbook
5. dex-in-memory-storage-wipes-oauth-tokens-on-every-pod-restart
✗ rank=0 expected=grafana-dashboards-as-code-not-ui-state
q: why do my grafana dashboards disappear after a pod restart?
1. infra-litellm-absorption-2026-05-16
2. 2026-05-12-koala-machine-state
3. Financial Sentiment Analysis on Stock Market Headlines With FinBERT & HuggingFace
4. brain-mcp-activation-runbook
5. dex-in-memory-storage-wipes-oauth-tokens-on-every-pod-restart
· rank=2 expected=double-diamond-methodology
q: what is the double diamond methodology?
1. Harnessing the Power of Hash Encoding for Categorical Data in Data Science
2. double-diamond-methodology <-- expected
3. unified-methodology-diamond-futures-autoresearch
4. futures-thinking-extended-double-diamond
5. insight-exploration-as-diamond-1
· rank=3 expected=2026-05-04-mcp-transport-version-claude-ai-strict
q: my MCP server works from claude code but fails on claude.ai — what's different?
1. qwen3-thinking-model-empty-content-trap
2. mcp-resource-url-empty-breaks-claude-ai-discovery-silently
3. 2026-05-04-mcp-transport-version-claude-ai-strict <-- expected
4. 2026-05-04-claude-ai-custom-mcp-connectors
5. finding-github-mcp-claudeai-vs-claudecode
· rank=2 expected=homelab-security-chains-not-bugs
q: how should I rate security findings — isolated bugs or exploit chains?
1. homelab-network-perimeter-model
2. homelab-security-chains-not-bugs <-- expected
3. Financial Sentiment Analysis on Stock Market Headlines With FinBERT & HuggingFace
4. policy-audit-mode-blocks-nothing
5. homelab-document-accepted-risk-to-break-audit-cycle
· rank=2 expected=2026-05-03-canonical-vs-derived-context-flow
q: how should canonical context files relate to derived adapter files?
1. qwen3-thinking-model-empty-content-trap
2. 2026-05-03-canonical-vs-derived-context-flow <-- expected
3. 2026-05-12-koala-machine-state
4. 2026-05-04-claude-ai-custom-mcp-connectors
5. koala-llama-swap-native-tool-calls-survey-2026-05
· rank=2 expected=homelab-core-glossary
q: what is the homelab core vocabulary glossary?
1. homelab-architecture-principles-2026-05
2. homelab-core-glossary <-- expected
3. Claude Managed Agents — architecture notes relevant to homelab agent platform
4. 2026-05-12-koala-machine-state
5. Autoresearch
★ rank=1 expected=koala-llama-swap-native-tool-calls-survey-2026-05
q: which models on koala llama-swap actually emit native tool_calls correctly?
1. koala-llama-swap-native-tool-calls-survey-2026-05 <-- expected
2. 2026-05-12-koala-machine-state
3. infra-litellm-absorption-2026-05-16
4. training-on-rtx-5070-pretraining-vs-finetuning
5. qwen3-thinking-model-empty-content-trap
✗ rank=0 expected=qwen35-9b-fast
q: what is qwen35-9b-fast and what's it used for?
1. koala-llama-swap-native-tool-calls-survey-2026-05
2. qwen3-thinking-model-empty-content-trap
3. Qwen35-9b-fast
4. infra-litellm-absorption-2026-05-16
5. 2026-05-12-koala-machine-state
✗ rank=0 expected=go-defer-errcheck-body-close
q: in go, how do I prevent defer body close from silently dropping errors?
1. infra-litellm-absorption-2026-05-16
2. homelab-network-perimeter-model
3. go-bytes-buffer-bytes-reset-aliasing-trap
4. mcpclient-empty-token-silent-401-envfrom-missing-key
5. brain-mcp-activation-runbook
✗ rank=0 expected=hyperguild-level3-pipeline-rewrite
q: what was the level 3 rewrite of hyperguild's ingestion pipeline?
1. 2026-05-12-koala-machine-state
2. homelab-core-glossary
3. brain-mcp-activation-runbook
4. koala-llama-swap-native-tool-calls-survey-2026-05
5. infra-litellm-absorption-2026-05-16
? rank=4 expected=adr-new-project-gitea-first-github-mirror
q: what's the new-project ADR — is it gitea-first or github-first?
1. gitea-push-mirror-cannot-create-remote-repo-needs-pre-existing-github-repo
2. gitea-mcp: full stack shipped end-to-end (2026-05-05)
3. mcp-tool-design-get-needs-list-partner
4. adr-new-project-gitea-first-github-mirror <-- expected
5. 2026-05-04-gitea-mcp-build-session

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# Brain retrieval eval set — 2026-05-24
20 hand-authored Q→expected-top-1-slug pairs. Used by `score.sh` to
measure brain_query top-1 + top-3 hit rate against the live brain.
Authoring rules:
- Each question maps to **one** clear-best entry. Avoid ambiguous
questions where multiple slugs could be the right answer.
- Questions are phrased the way a future-me would actually ask, not
the way the entry's title reads. Some lexical distance is the point.
- `expected` is the slug as stored in `brain_entities.slug`. Update
if the slug renames.
## Pairs
```
q: how do I stop dex from logging users out on every pod restart?
expected: dex-in-memory-storage-wipes-oauth-tokens-on-every-pod-restart
q: my postgres-exporter broke after revoking PUBLIC CONNECT — why?
expected: postgres-least-privilege-migration-tenant-grant-bypass-2026-05
q: when is a NodePort acceptable vs needing a public ingress with bearer gate?
expected: homelab-network-perimeter-model
q: what does container exit code 255 with reason Unknown mean?
expected: exit-255-unknown-reason-not-oom
q: can gitea push-mirror create the github repo automatically?
expected: gitea-push-mirror-cannot-create-remote-repo-needs-pre-existing-github-repo
q: a flux kustomization is stuck after I removed a resource — why?
expected: flux-healthcheck-stale-on-resource-removal
q: the bytes buffer aliasing trap with Reset in a loop — what's the bug?
expected: go-bytes-buffer-bytes-reset-aliasing-trap
q: what are the homelab architecture principles from may 2026?
expected: homelab-architecture-principles-2026-05
q: where does the sops age private key live in the cluster?
expected: 2026-05-04-sops-age-key-from-flux-cluster
q: why do my grafana dashboards disappear after a pod restart?
expected: grafana-dashboards-as-code-not-ui-state
q: what is the double diamond methodology?
expected: double-diamond-methodology
q: my MCP server works from claude code but fails on claude.ai — what's different?
expected: 2026-05-04-mcp-transport-version-claude-ai-strict
q: how should I rate security findings — isolated bugs or exploit chains?
expected: homelab-security-chains-not-bugs
q: how should canonical context files relate to derived adapter files?
expected: 2026-05-03-canonical-vs-derived-context-flow
q: what is the homelab core vocabulary glossary?
expected: homelab-core-glossary
q: which models on koala llama-swap actually emit native tool_calls correctly?
expected: koala-llama-swap-native-tool-calls-survey-2026-05
q: what is qwen35-9b-fast and what's it used for?
expected: qwen35-9b-fast
q: in go, how do I prevent defer body close from silently dropping errors?
expected: go-defer-errcheck-body-close
q: what was the level 3 rewrite of hyperguild's ingestion pipeline?
expected: hyperguild-level3-pipeline-rewrite
q: what's the new-project ADR — is it gitea-first or github-first?
expected: adr-new-project-gitea-first-github-mirror
```

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#!/usr/bin/env python3
"""Score brain_query against the qa-2026-05.md eval set.
Reads `q:` / `expected:` pairs, calls brain_query MCP for each, records
top-1 + top-3 hit rate. Run:
BRAIN_MCP_TOKEN=$(grep '^export BRAIN_MCP_TOKEN=' ~/.llmkeys | cut -d= -f2-) \\
python3 score.py qa-2026-05.md
Optionally pass --baseline <name> to save the result as a labeled run.
"""
import argparse
import json
import os
import re
import sys
import time
import urllib.request
ENDPOINT = "https://brain-mcp.d-ma.be/mcp"
def load_pairs(path):
pairs = []
q = None
with open(path) as f:
for line in f:
line = line.rstrip()
if line.startswith("q:"):
q = line[2:].strip()
elif line.startswith("expected:") and q is not None:
expected = line[len("expected:"):].strip()
pairs.append((q, expected))
q = None
return pairs
def brain_query(token, query, k=5):
body = json.dumps({
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {"name": "brain_query", "arguments": {"query": query, "k": k}},
}).encode()
req = urllib.request.Request(
ENDPOINT,
data=body,
headers={
"Authorization": f"Bearer {token}",
"Content-Type": "application/json",
"Accept": "application/json, text/event-stream",
},
method="POST",
)
with urllib.request.urlopen(req, timeout=30) as r:
raw = r.read().decode()
for line in raw.splitlines():
if line.startswith("data:"):
raw = line[5:].strip()
break
d = json.loads(raw)
if "error" in d:
raise RuntimeError(d["error"])
text = d["result"]["content"][0]["text"]
return json.loads(text).get("results", [])
def slug_of(result):
# `title` mirrors the slug in brain_entities for normal entries.
# Fall back to basename(path) if title is missing.
t = result.get("title", "")
if t:
return t
p = result.get("path", "")
return re.sub(r"\.md$", "", os.path.basename(p))
def main():
ap = argparse.ArgumentParser()
ap.add_argument("evalset")
ap.add_argument("--baseline", default="run")
ap.add_argument("--k", type=int, default=5)
args = ap.parse_args()
token = os.environ.get("BRAIN_MCP_TOKEN")
if not token:
sys.exit("BRAIN_MCP_TOKEN not set")
pairs = load_pairs(args.evalset)
if not pairs:
sys.exit(f"no pairs in {args.evalset}")
print(f"# {args.baseline}{len(pairs)} questions, k={args.k}")
print()
hits1 = 0
hits3 = 0
detail = []
for q, expected in pairs:
try:
results = brain_query(token, q, k=args.k)
except Exception as e:
detail.append((q, expected, [], f"ERR {e}"))
continue
slugs = [slug_of(r) for r in results]
rank = slugs.index(expected) + 1 if expected in slugs else 0
h1 = 1 if rank == 1 else 0
h3 = 1 if 0 < rank <= 3 else 0
hits1 += h1
hits3 += h3
detail.append((q, expected, slugs, rank))
total = len(pairs)
print(f"top-1 hit rate: {hits1}/{total} = {100*hits1/total:.0f}%")
print(f"top-3 hit rate: {hits3}/{total} = {100*hits3/total:.0f}%")
print()
print("## per-question detail")
print()
for q, expected, slugs, rank in detail:
marker = {0: "", 1: "", 2: "·", 3: "·"}.get(rank, "?")
if isinstance(rank, str):
marker = "!"
print(f"{marker} rank={rank} expected={expected}")
print(f" q: {q}")
for i, s in enumerate(slugs[:args.k], 1):
mark = " <-- expected" if s == expected else ""
print(f" {i}. {s}{mark}")
print()
if __name__ == "__main__":
main()