plan

A planning workflow that turns a task description into a structured project plan. It asks clarifying questions and saves the plan as a Markdown file without writing code.

In plain words
What is it for?
Use it to plan a feature, architecture, design, strategy, roadmap, or other coding task, with the resulting plan saved under the project’s docs folder.
Why use it?
It helps clarify the request and break work into tasks before implementation begins. The plan records assignments and checks for verifying the result.

Skill for Claude CodeCodex

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 skills/bugrabilge/bilge-development-kit/plan
Any agent
npx skills add bugrabilge/bilge-development-kit --skill plan
Clone the repo
git clone --depth 1 https://github.com/bugrabilge/bilge-development-kit

Made for: Claude Code, Codex.

Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 520 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 $0.00044 $0.00520
Opus 5 $0.00022 $0.00260
Sonnet 5 $0.00009 $0.00104
Haiku 4.5 $0.00004 $0.00052

Measured 2d ago against content hash 6160f174b951, 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 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.

.claude/skills/plan/SKILL.md · 84 lines

What it actually says

/plan - Project Planning Mode

$ARGUMENTS


CRITICAL RULES

  1. NO CODE WRITING - This command creates plan file only
  2. Use project-planner agent - Read .agent/agents/project-planner.md
  3. Socratic Gate - Ask clarifying questions before planning
  4. Dynamic Naming - Plan file named based on task

Task

Use the project-planner agent with this context:

CONTEXT:
- User Request: $ARGUMENTS
- Mode: PLANNING ONLY (no code)
- Output: docs/PLAN-{task-slug}.md (dynamic naming)

NAMING RULES:
1. Extract 2-3 key words from request
2. Lowercase, hyphen-separated
3. Max 30 characters
4. Example: "e-commerce cart" → PLAN-ecommerce-cart.md

RULES:
1. Follow project-planner.md Phase -1 (Context Check)
2. Follow project-planner.md Phase 0 (Socratic Gate)
3. Create PLAN-{slug}.md with task breakdown
4. DO NOT write any code files
5. REPORT the exact file name created

Expected Output

Deliverable Location
Project Plan docs/PLAN-{task-slug}.md
Task Breakdown Inside plan file
Agent Assignments Inside plan file
Verification Checklist Phase X in plan file

After Planning

Tell user:

Plan created: docs/PLAN-{slug}.md

Next steps:
- Review the plan
- Run `/create` to start implementation
- Or modify plan manually

Naming Examples

Request Plan File
/plan e-commerce site with cart docs/PLAN-ecommerce-cart.md
/plan mobile app for fitness docs/PLAN-fitness-app.md
/plan add dark mode feature docs/PLAN-dark-mode.md
/plan SaaS dashboard docs/PLAN-saas-dashboard.md
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 · 84 lines · 44 tokens per session scan A 6160f174b951

Subscribe to this mod's changes

plan is a skill published in the GitHub repository bugrabilge/bilge-development-kit (10 stars, last pushed 4mo ago), licensed MIT. It adds 44 tokens to every session and 520 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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