deciduex

// OpenCode Plugin: Require Action Node
// Checks for recent action/goal nodes before file edits
// This enforces the decision graph workflow: log BEFORE you code

import type { Plugin } from "@opencode-ai/plugin"

export const RequireActionNode: Plugin = async ({ $ }) => {
  return {
    "tool.execute.before": async (input, output) => {
      // Only check on edit and write tools
      if (input.tool !== "edit" && input.tool !== "write") {
        return
      }

      try {
        // Check if deciduous is initialized
        const fs = await import("fs")
        if (!fs.existsSync(".deciduous")) {
          return // No deciduous in this project, allow all edits
        }

        // Get recent nodes from deciduous
        const result = await $`deciduous nodes 2>/dev/null | tail -5`.quiet()
        const stdout = result.stdout.toString()
        const lines = stdout.trim().split("\n").filter((l: string) => l.trim())

        // Check for any goal or action node
        let hasRecentNode = false
        for (const line of lines) {
          if (line.match(/goal|action/i)) {
            hasRecentNode = true
            break
          }
        }

        if (!hasRecentNode && lines.length > 2) {
          // Show a reminder but don't block
          console.error(`
+===================================================================+
|  DECIDUOUS: No recent action/goal node found                      |
+===================================================================+
|  Before editing files, log what you're about to do:               |
|                                                                   |
|  For new work:                                                    |
|    deciduous add goal "What you're trying to achieve" -c 90       |
|                                                                   |
|  For implementation:                                              |
|    deciduous add action "What you're about to implement" -c 85    |
|                                                                   |
|  Then link to parent:                                             |
|    deciduous link <parent_id> <new_id> -r "reason"                |
+===================================================================+
`)
        }
      } catch (error) {
        // If deciduous isn't available, continue silently
      }
    }
  }
}