Add graphify Kilo plugin and documentation for knowledge graph usage

.gitignore

@@ -210,3 +210,4 @@ cost.json
 graphify-out/cache/
 
 examples/
+.playwright-mcp

.kilo/plugins/graphify.js

@@ -0,0 +1,26 @@
+// graphify Kilo plugin
+// Injects a knowledge graph reminder before bash tool calls when the graph exists.
+import { existsSync } from "fs";
+import { join } from "path";
+
+export const GraphifyPlugin = async ({ directory }) => {
+  let reminded = false;
+
+  return {
+    "tool.execute.before": async (input, output) => {
+      if (reminded) return;
+      if (!existsSync(join(directory, "graphify-out", "graph.json"))) return;
+
+      if (input.tool === "bash") {
+        // Separate with ';' not '&&' — Windows PowerShell 5.1 rejects '&&' as a
+        // statement separator ("not a valid statement separator"), which broke
+        // the first bash command in every OpenCode session on Windows (#1646).
+        // ';' works in PowerShell 5.1, Bash, and POSIX shells alike.
+        output.args.command =
+          'echo "[graphify] Knowledge graph available. Read graphify-out/GRAPH_REPORT.md for god nodes and architecture context before searching files." ; ' +
+          output.args.command;
+        reminded = true;
+      }
+    },
+  };
+};

AGENTS.md

@@ -0,0 +1,12 @@
+## graphify
+
+This project has a knowledge graph at graphify-out/ with god nodes, community structure, and cross-file relationships.
+
+When the user types `/graphify`, use the installed graphify skill or instructions before doing anything else.
+
+Rules:
+- For codebase questions, first run `graphify query "<question>"` when graphify-out/graph.json exists. Use `graphify path "<A>" "<B>"` for relationships and `graphify explain "<concept>"` for focused concepts. These return a scoped subgraph, usually much smaller than GRAPH_REPORT.md or raw grep output.
+- Dirty graphify-out/ files are expected after hooks or incremental updates; dirty graph files are not a reason to skip graphify. Only skip graphify if the task is about stale or incorrect graph output, or the user explicitly says not to use it.
+- If graphify-out/wiki/index.md exists, use it for broad navigation instead of raw source browsing.
+- Read graphify-out/GRAPH_REPORT.md only for broad architecture review or when query/path/explain do not surface enough context.
+- After modifying code, run `graphify update .` to keep the graph current (AST-only, no API cost).