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.
npx agentmods add skills/agentic-development/adev-plugin/brainstormnpx skills add agentic-development/adev-plugin --skill brainstormgit clone --depth 1 https://github.com/agentic-development/adev-pluginWhat 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 | $0.00062 | $0.08682 |
| Opus 5 | $0.00031 | $0.04341 |
| Sonnet 5 | $0.00012 | $0.01736 |
| Haiku 4.5 | $0.00006 | $0.00868 |
Grade A, and why
adev:brainstorm 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.
How it starts
The opening of the file, as written. The whole thing — 654 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Brainstorm a Feature Charter
Turn a feature idea into a structured Feature Charter through collaborative dialogue. The charter defines WHAT a module does and its boundaries, grounded in the project constitution and existing specs. It does not define HOW the module is built (that is the job of Live Specs and implementation plans).
Arguments
- No arguments: freeform brainstorm (user describes the idea conversationally)
--module <name>: scope brainstorm to an existing module (extends or revises its charter)--from-blueprint <path>: seed brainstorm from a blueprint file (skips early clarification, jumps to approach selection)--no-bootstrap: suppress product.md bootstrap even on first-charter scenarios (charter is written without product.md modifications)--kind <kind>: one ofCHARTER_KINDS(module,feature,cross-cutting,initiative). If omitted, the skill presents the ask-first menu in Step 2 (Clarify). Strict-on-write: missing or invalid values trigger a re-prompt — there is no silent defaulting on write. Read-time defaulting (feature) applies only to legacy charters that pre-date this taxonomy.
Prerequisites
This skill requires .context-index/ to exist. If it does not, tell the user:
This project has not been initialized with the Agentic Development Framework. Run
/adev:initfirst to set up the context index, then come back to brainstorm.
Do not proceed without a constitution.
Workspace Root Handling
Before starting Step 1, detect whether the skill is being invoked at a workspace root (a directory that contains a workspace.yaml or .workspace/ configuration but is not itself one of the registered repos):
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 2d ago First seen · 654 lines · 62 tokens per session scan A eb0668b28f94
adev:brainstorm is a skill published in the GitHub repository agentic-development/adev-plugin (11 stars, last pushed 2d ago), licensed MIT. It adds 62 tokens to every session and 8,682 once invoked, about $0.0003 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.
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