dev-docs

A command that creates a short, structured implementation plan after examining the project code and conventions.

In plain words
What is it for?
Use it to produce a plan file containing the goal, approach, phases, task breakdown, touched files, and acceptance checks.
Why use it?
It turns a broad development request into ordered work with clear files and checks, so the task can be reviewed before implementation.

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/aspenkit/aspens/dev-docs
Clone the repo
git clone --depth 1 https://github.com/aspenkit/aspens
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 314 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 $0.00009 $0.00314
Opus 5 $0.00005 $0.00157
Sonnet 5 $0.00002 $0.00063
Haiku 4.5 $0.00001 $0.00031

Measured yesterday against content hash f431d7f7c7aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dev-docs 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.

src/templates/commands/dev-docs.md · 36 lines

What it actually says

Create a focused, actionable plan for: $ARGUMENTS

Instructions

  1. Analyze the request — determine scope by reading relevant code

  2. Create a plan with:

    • Goal (one sentence)
    • Approach (brief architectural description, key decisions)
    • Phases with tasks (each phase independently verifiable)
    • Acceptance criteria per phase
  3. Task Breakdown:

    • Tasks within a phase are independent (can run in parallel)
    • Tasks across phases are sequential
    • Each task specifies files it touches
    • Include acceptance criteria for each task
  4. Create plan file:

    • Create directory: dev/active/[task-name]/ (relative to project root)
    • Generate one file: plan.md
    • Keep it under 100 lines — concise plans get executed, long ones don't

Quality Standards

  • Plans must be actionable — specific files, specific changes, specific verification commands
  • Each phase must leave the codebase in a working state
  • Don't plan what you haven't read — examine the code first

Context References

  • Check CLAUDE.md and .claude/skills/ for project conventions

Tip: Use the plan agent to both plan AND execute. This command is for when you only need 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. yesterday First seen · 36 lines · 9 tokens per session scan A f431d7f7c7aa

Subscribe to this mod's changes

dev-docs is a command published in the GitHub repository aspenkit/aspens (96 stars, last pushed 16d ago), licensed MIT. It adds 9 tokens to every session and 314 once invoked, about $0.0000 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 2026-08-30.