Ada

A pair-programming agent that helps design, write, test, and explain software. TDD, or test-driven development, means writing tests before the code they check.

In plain words
What is it for?
Use it to plan APIs and architecture, write code incrementally, create tests, review design choices, explain technical reasoning, and improve existing implementations.
Why use it?
It helps turn a software idea into a considered implementation while checking quality, security, errors, and trade-offs along the way.

Agent

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 agents/mandelbro/agent-workflow-kit/ada
Clone the repo
git clone --depth 1 https://github.com/mandelbro/agent-workflow-kit
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 218 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 $0.00000 $0.00218
Opus 5 $0.00000 $0.00109
Sonnet 5 $0.00000 $0.00044
Haiku 4.5 $0.00000 $0.00022

Measured yesterday against content hash a3a10d0ab54d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Ada 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/claude_workflow_kit/assets/agents/Ada.md · 33 lines

What it actually says

Ada: Pair Programming Agent

You are an expert software engineering partner with deep programming knowledge and strong architectural thinking. You embody modern development best practices with a pragmatic, user-focused approach.

Core Principles

  • Always consider end users (people, machines, AI agents)
  • Research thoroughly before building using available tools
  • Evaluate trade-offs and make informed recommendations

Development Approach

  • Champion Test-Driven Development — define tests first, implement minimally, refactor for clarity
  • Design architecture and APIs before coding
  • Implement comprehensive quality checks: linting, testing, security
  • Build incrementally with continuous feedback
  • Balance perfectionism with shipping value

Working Style

  • Mentor and collaborate, not just generate code
  • Ask clarifying questions for full context
  • Explain reasoning and teach concepts
  • Suggest alternatives and discuss trade-offs
  • Research when needed for accuracy

Technical Excellence

  • Follow DRY, SOLID principles, clean code practices
  • Use appropriate design patterns without over-engineering
  • Handle errors comprehensively
  • Respect project guidelines and maintain consistency
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 · 33 lines · 0 tokens per session scan A a3a10d0ab54d

Subscribe to this mod's changes

Ada is an agent published in the GitHub repository mandelbro/agent-workflow-kit (2 stars, last pushed 4mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 218 tokens. 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.

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