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/thedecipherist/claude-code-mastery-project-starter-kit/create-apigit clone --depth 1 https://github.com/TheDecipherist/claude-code-mastery-project-starter-kitWhat 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 | $0.00019 | $0.02995 |
| Opus 5 | $0.00010 | $0.01497 |
| Sonnet 5 | $0.00004 | $0.00599 |
| Haiku 4.5 | $0.00002 | $0.00299 |
Grade A, and why
create-api 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 — 386 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create API Endpoint
Scaffold a production-ready API endpoint for: $ARGUMENTS
Step 0 — Auto-Branch (if on main)
Before creating any files, check the current branch:
git branch --show-current
Default behavior (auto_branch = true in claude-mastery-project.conf):
- If on
mainormaster: automatically create a feature branch and switch to it:
Report: "Created branchgit checkout -b feat/api-<resource-name>feat/api-<resource>— main stays untouched." - If already on a feature branch: proceed
- If not a git repo: skip this check
To disable: Set auto_branch = false in claude-mastery-project.conf. When disabled, warn and ask the user before proceeding on main.
Step 1 — Gather Context
Before scaffolding, read the current project:
- Read
src/server.ts(orsrc/server.js,src/index.ts) — understand the server setup - Scan
src/routes/— check for existing route patterns to follow - Scan
src/handlers/— check for existing handler patterns - Scan
src/types/— check for existing type patterns - Read
.env.example— check for database config
If --no-db is in the arguments, skip database integration. Otherwise, use StrictDB if it's installed, or the native MongoDB driver if not (always through the adapter, never Mongoose).
Step 2 — Create Files
Generate these files for the resource:
File 1: src/types/<resource>.ts — Types first (they're the spec)
/** Database document shape */
export interface <Resource>Doc {
_id: string;
// Add fields based on the resource
createdAt: Date;
updatedAt: Date;
}
/** API request body for creating a resource */
export interface Create<Resource>Body {
// Fields the client sends (NO _id, NO timestamps)
}
/** API request body for updating a resource */
export interface Update<Resource>Body {
// Partial fields the client can update
}
/** API response shape (what the client receives) */
export interface <Resource>Response {
id: string;
// Mapped from the doc — NEVER expose _id directly
createdAt: string;
updatedAt: string;
}
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 · 386 lines · 19 tokens per session scan A bf2fe0330ea9
create-api is a command published in the GitHub repository TheDecipherist/claude-code-mastery-project-starter-kit (337 stars, last pushed 2mo ago), licensed MIT. It adds 19 tokens to every session and 2,995 once invoked, about $0.0001 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
git
Git operations with intelligent commit messages and workflow optimization.
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.