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 commands/alteredcraft/claude-code-plugins/buildgit clone --depth 1 https://github.com/AlteredCraft/claude-code-pluginsWhat 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 | $0.00006 | $0.01909 |
| Opus 5 | $0.00003 | $0.00955 |
| Sonnet 5 | $0.00001 | $0.00382 |
| Haiku 4.5 | $0.00001 | $0.00191 |
Grade A, and why
build 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.
How it starts
The opening of the file, as written. The whole thing — 180 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are executing an artifact-driven development workflow inspired by Google's Antigravity. This workflow produces three living artifacts that scope work and track progress.
Artifacts Location
Per-build artifacts live in ./.artifacts/bld-<project-slug>/:
todo.md— Task list (scope and progress)implementation-plan.md— Technical approach (architecture)walkthrough.md— Verification record (proof of completion)
Shared artifact at ./.artifacts/ADR.md:
- Architecture Decision Records — significant decisions across all builds, each entry links to its related build
Phase Detection
First, check if .artifacts/ directory exists and contains any bld-* folders (Search(pattern: ".artifacts/bld-*/**/*")).
If existing builds are found:
- STOP — List all existing
bld-*folders to the user - Ask: "I found these existing builds. Would you like to:
- Continue one of these? (specify which)
- Start a new build?"
- Wait for user response before proceeding
If user chooses to continue an existing build:
Read the artifacts in that folder to determine current phase:
- todo.md exists, status: in-progress → Continue task list refinement or proceed to planning
- implementation-plan.md exists, status: pending → Await user approval
- implementation-plan.md exists, status: in-progress → Continue execution
- walkthrough.md exists, status: complete → Workflow finished, summarize
If user chooses to start a new build (or no existing builds found):
If .artifacts/ directory does not exist, create it and add:
- A
README.mdthat explains:- What this directory is for (managed by the
/buildcommand) - The three per-build artifacts (
todo.md,implementation-plan.md,walkthrough.md) - The shared
ADR.mdfile for architecture decisions across all builds - A brief summary of the workflow phases
- How to use the
/buildcommand
- What this directory is for (managed by the
- An
ADR.mdfile with this template:# Architecture Decision Records This file captures significant architectural decisions made during builds in this project. ---
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.
- yesterday First seen · 180 lines · 6 tokens per session scan A c0dba61d3ec4
build is a command published in the GitHub repository AlteredCraft/claude-code-plugins (13 stars, last pushed 3mo ago), licensed MIT. It adds 6 tokens to every session and 1,909 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.
Other commands, from other repositories
checklist
Generate a custom checklist for the current feature based on user requirements.
clarify
Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.
specify
Create or update the feature specification from a natural language feature description.
analyze
Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.
converge
Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it.
implement
Execute the implementation plan by processing and executing all tasks defined in tasks.md.