graphify-path

graphify-path: shortest path between two graph nodes

Wraps python -m graphify path "A" "B". Returns the smallest hop count between two nodes plus the relations and confidence tags along the way.

When to invoke

• The project has graphify-out/graph.json.
• The user names two specific things and wants to see the connection between them: "how does LoginScreen.handleSignOn reach saveSession()?", "trace from getOAuthConfig to the AppDelegate".
• For "what is X" use graphify-explain; for open-ended exploration use graphify-query.

If graph.json is missing, tell the user to run /graphify-ingest first.

Steps

Step 1 — Resolve target path

TARGET="${1:-$PWD}"
TARGET=$(cd "$TARGET" && pwd)
GRAPH="$TARGET/graphify-out/graph.json"
[ -f "$GRAPH" ] || { echo "No code graph at $GRAPH. Run /graphify-ingest first."; exit 1; }

Step 2 — Resolve a working Python with graphifyy

PYTHON=""
PIN_FILE="$TARGET/graphify-out/.graphify_python"
if [ -f "$PIN_FILE" ]; then
    PINNED=$(cat "$PIN_FILE")
    if [ -x "$PINNED" ] && "$PINNED" -c "import graphify" 2>/dev/null; then
        PYTHON="$PINNED"
    fi
fi
if [ -z "$PYTHON" ]; then
    for cand in python3 python; do
        if command -v "$cand" >/dev/null 2>&1 && "$cand" -c "import graphify" 2>/dev/null; then
            PYTHON="$cand"; break
        fi
    done
fi
[ -z "$PYTHON" ] && { echo "graphifyy not installed. Run bin/setup-graphify.sh on this project."; exit 1; }

Step 3 — Run the path query

cd "$TARGET" && "$PYTHON" -m graphify path "$NODE_A" "$NODE_B"

Pass the user's two names verbatim. graphify matches against node labels (substring); if either name doesn't match a node, it returns a clear error and you should surface it.

Step 4 — Present the path

Output is one line per hop:

Shortest path (N hops):
  A --relation [confidence]--> intermediate --relation [confidence]--> B

When presenting in chat:

• Lead with the hop count.
• Note whether any hop is INFERRED or AMBIGUOUS (lower confidence) versus all EXTRACTED.
• Cross-reference the communities each node belongs to (look up in graphify-out/labels.json) when the path spans multiple clusters — that's often the interesting finding.

If no path exists, the two nodes are in different connected components. That's a real answer: tell the user the graph thinks A and B are unrelated.

Cost

$0. NetworkX shortest path on the existing graph.

Cross-skill notes

• For traces involving more than two anchors ("A → B → C → D"), run graphify-path twice (A→B, B→C, etc.) and stitch.
• For a single node's full neighborhood, use graphify-explain instead (it's faster and shows all edges, not just one path).