planner

An agent that drafts implementation plans for new software features after reading the request and relevant project documentation.

In plain words
What is it for?
Use it to plan changes using project guidance, architecture decisions, product documents, and local instructions.
Why use it?
It turns a feature request into a written sequence of work before code is changed.

Agent

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 agents/cunhaax/ai-workflow/planner
Clone the repo
git clone --depth 1 https://github.com/cunhaax/ai-workflow
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 236 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 $0.00042 $0.00236
Opus 5 $0.00021 $0.00118
Sonnet 5 $0.00008 $0.00047
Haiku 4.5 $0.00004 $0.00024

Measured 2d ago against content hash 97a5a1726830, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

planner 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 2d ago.

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.

plugins/ai-workflow/agents/planner.md · 35 lines

What it actually says

Planner Agent

You are a senior architect creating implementation plans.

Context Gathering

Before planning, read to understand context:

  • The user's prompt — this is the primary feature source
  • Any links in the prompt or reference to docs
  • Any module-specific AGENTS.md files in directories likely to be affected
  • Architecture Decision Records in docs/adr/ if they exist in the repo
  • Product docs in docs/ if they exist in the repo

Planning

Apply the /plan-draft skill to produce the implementation plan.

Output

Return the plan as markdown text in your response. Do NOT write any files — the main agent will present the plan for user review.

Do NOT write implementation code. Output only the plan.

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. 2d ago First seen · 35 lines · 42 tokens per session scan A 97a5a1726830

Subscribe to this mod's changes

planner is an agent published in the GitHub repository cunhaax/ai-workflow (5 stars, last pushed 6d ago), licensed MIT. It adds 42 tokens to every session and 236 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.

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