feature-development

A reusable workflow command for developing features in the fdic-mcp-server project. It outlines steps for understanding the current code, making a focused change, running relevant checks, and summarising the result.

In plain words
What is it for?
Use it when adding a feature, related tests, or documentation in that project. It points contributors toward schemas, tools, shared code, and test files.
Why use it?
It gives feature work a repeatable starting structure without forcing a rigid script or implementation approach. This can reduce skipped checks and unclear handoffs.

Command for Claude Code

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/jflamb/fdic-mcp-server/feature-development
Clone the repo
git clone --depth 1 https://github.com/jflamb/fdic-mcp-server

Made for: Claude Code.

Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 203 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 $0.00016 $0.00203
Opus 5 $0.00008 $0.00102
Sonnet 5 $0.00003 $0.00041
Haiku 4.5 $0.00002 $0.00020

Measured yesterday against content hash a20315fcffe7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

feature-development 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.

.claude/commands/feature-development.md · 38 lines

What it actually says

/feature-development

Use this workflow when working on feature-development in fdic-mcp-server.

Goal

Standard feature implementation workflow

Common Files

  • src/schemas/*
  • src/tools/*
  • src/tools/shared/*
  • **/*.test.*

Suggested Sequence

  1. Understand the current state and failure mode before editing.
  2. Make the smallest coherent change that satisfies the workflow goal.
  3. Run the most relevant verification for touched files.
  4. Summarize what changed and what still needs review.

Typical Commit Signals

  • Add feature implementation
  • Add tests for feature
  • Update documentation

Notes

  • Treat this as a scaffold, not a hard-coded script.
  • Update the command if the workflow evolves materially.
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 · 38 lines · 16 tokens per session scan A a20315fcffe7

Subscribe to this mod's changes

feature-development is a command published in the GitHub repository jflamb/fdic-mcp-server (0 stars, last pushed 2mo ago), licensed MIT. It adds 16 tokens to every session and 203 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 2026-08-31.