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.

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.

It helps clarify the request and break work into tasks before implementation begins. The plan records assignments and checks for verifying the result.

How bugrabilge/bilge-development-kit configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to bugrabilge/bilge-development-kit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/bugrabilge/bilge-development-kit/main/.claude/skills/plan/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/bugrabilge/bilge-development-kit

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bugrabilge/bilge-development-kit/plan/github.svg)](https://agentmods.dev/skills/bugrabilge/bilge-development-kit/plan)

Your own site

<a href="https://agentmods.dev/skills/bugrabilge/bilge-development-kit/plan"><img src="https://agentmods.dev/badge/skills/bugrabilge/bilge-development-kit/plan/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bugrabilge/bilge-development-kit/plan"><img src="https://agentmods.dev/badge/skills/bugrabilge/bilge-development-kit/plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

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. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00044	$0.00520
Opus 5.5	$0.00018	$0.00208
Sonnet 5.5	$0.00009	$0.00104
Haiku 4.5	$0.00004	$0.00052

Measured 2mo ago against content hash 6160f174b951, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 2mo 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

NO CODE WRITING - This command creates plan file only
Use project-planner agent - Read .agent/agents/project-planner.md
Socratic Gate - Ask clarifying questions before planning
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.

2mo 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 6mo ago), licensed MIT. It adds 44 tokens to every session and 520 once invoked, about $0.0002 per session on Opus 5.5. 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.

Planning

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bilge-development-kit: Skill for Claude Code