plan

A planning command that researches a proposed software change and produces a technical specification plus phased implementation plan. The specification can cover APIs, data models, dependencies, and how to verify the code.

In plain words
What is it for?
Use it when starting features, large refactors, architectural changes, or work spanning multiple files; it is also suited to projects with unclear requirements or several dependent steps.
Why use it?
It helps clarify requirements, architecture, risks, and affected components before implementation begins. It also pauses for the user's confirmation before changing code.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/zhmxiaowo/opencode-simple/plan
Clone the repo
git clone --depth 1 https://github.com/zhmxiaowo/opencode-simple
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 907 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00035 $0.00907
Opus 5 $0.00017 $0.00453
Sonnet 5 $0.00007 $0.00181
Haiku 4.5 $0.00003 $0.00091

Measured yesterday against content hash df2f4ef67840, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plan scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.opencode/commands/plan.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plan Command

This command invokes the planner agent to research the target technology, produce a SPEC (API design, data models, dependencies), and create a phased implementation plan — all before writing any code.

What This Command Does

  1. Research - Call context7 + exa-web-search MCP to gather official docs and best practices
  2. Output SPEC - API/interface design, data models, dependency table, compile verification plan
  3. Create Step Plan - Break down into phases with depends-on relationships
  4. Wait for Confirmation - MUST receive user approval before proceeding

💡 如果只需要 SPEC 不需要步骤分解,使用 /spec 快捷方式。

When to Use

Use /plan when:

  • Starting a new feature
  • Making significant architectural changes
  • Working on complex refactoring
  • Multiple files/components will be affected
  • Requirements are unclear or ambiguous

How It Works

The planner agent will:

  1. Research target technology via context7 and exa-web-search MCP
  2. Output SPEC with API design, data models, deps, compile plan, known limitations
  3. Break down into phases with specific, actionable steps and depends-on graph
  4. Identify risks and potential blockers
  5. Present the full plan and WAIT for your explicit confirmation

Example Usage

User: /plan I need to add real-time notifications when markets resolve

Agent (planner):
# Implementation Plan: Real-Time Market Resolution Notifications

## Requirements Restatement
- Send notifications to users when markets they're watching resolve
- Support multiple notification channels (in-app, email, webhook)
- Ensure notifications are delivered reliably
- Include market outcome and user's position result

## Implementation Phases

### Phase 1: Database Schema
- Add notifications table with columns: id, user_id, market_id, type, status, created_at
- Add user_notification_preferences table for channel preferences
- Create indexes on user_id and market_id for performance

### Phase 2: Notification Service
- Create notification service in lib/notifications.ts
- Implement notification queue using BullMQ/Redis
- Add retry logic for failed deliveries
- Create notification templates

### Phase 3: Integration Points
- Hook into market resolution logic (when status changes to "resolved")
- Query all users with positions in market
- Enqueue notifications for each user

### Phase 4: Frontend Components
- Create NotificationBell component in header
- Add NotificationList modal
- Implement real-time updates via Supabase subscriptions
- Add notification preferences page

## Dependencies
- Redis (for queue)
- Email service (SendGrid/Resend)
- Supabase real-time subscriptions

## Risks
- HIGH: Email deliverability (SPF/DKIM required)
- MEDIUM: Performance with 1000+ users per market
- MEDIUM: Notification spam if markets resolve frequently
- LOW: Real-time subscription overhead

## Estimated Complexity: MEDIUM
- Backend: 4-6 hours
- Frontend: 3-4 hours
- CDD Verification: 1-2 hours
- Total: 9-12 hours

**WAITING FOR CONFIRMATION**: Proceed with this plan? (yes/no/modify)

Read the full file on GitHub · 119 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 119 lines · 35 tokens per session scan A df2f4ef67840

Subscribe to this mod's changes

plan is a command published in the GitHub repository zhmxiaowo/opencode-simple (2 stars, last pushed 5mo ago), licensed MIT. It adds 35 tokens to every session and 907 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.