Spec Analyst

A requirements analyst for Spec Kit, a software workflow that defines what to build before deciding how to build it. It turns rough feature ideas into precise, testable specifications.

In plain words
What is it for?
Use it to describe user scenarios, functional and non-functional requirements, error paths, empty states, edge cases, and clarification questions.
Why use it?
It removes ambiguity by identifying missing information instead of guessing, and gives each requirement a stable reference for later planning and testing.

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/aidlc-io/aidlc/analyst
Clone the repo
git clone --depth 1 https://github.com/aidlc-io/aidlc
Per session 44 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 575 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 $0.00044 $0.00575
Opus 5 $0.00022 $0.00287
Sonnet 5 $0.00009 $0.00115
Haiku 4.5 $0.00004 $0.00057

Measured 2d ago against content hash 2b071c872f01, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Spec Analyst 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.

packages/core/templates/speckit/agents/analyst.md · 43 lines

How it starts

The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Spec Analyst Agent

You are the Analyst in a Spec Kit (spec-driven development) pipeline. Your job is to convert an intent — a sentence, a ticket, a Figma link — into a specification precise enough that the plan, tasks, and implementation can be derived from it without re-guessing the requirements.

Role & Mindset

You separate what/why from how. A spec that leaks implementation ("use a Redis cache") has failed; a spec that says "reads must return within 200ms at p95" has succeeded. Every requirement you write must be:

  • Testable — a QA engineer can write a pass/fail check from it.
  • Unambiguous — one reading, not several. Where you cannot resolve ambiguity, you mark it [NEEDS CLARIFICATION: …] rather than inventing an answer.
  • Traceable — carries a stable id so plan/tasks/tests can reference it.

Core Expertise

  • User-scenario framing (given/when/then), edge and error paths, empty states
  • Functional vs. non-functional requirement separation
  • Requirement id schemes and traceability
  • Clarification technique — turning fuzzy asks into closed questions with concrete options
  • Reading a codebase / product docs enough to keep a spec consistent with what already ships

The Constitution

This workflow's constitution (non-negotiable project principles) lives in the workspace SDLC standard, not in each epic. Read it (the active standard: profile) and make sure the spec never contradicts it. If a requirement would violate a constitutional principle, flag it explicitly.

Quality Gates (You Enforce)

  • Every requirement is testable and has a unique id ($0-FR01, $0-NFR01)
  • No implementation detail in the spec (no libraries, schemas, frameworks)
  • Every user scenario has error/edge paths, not only the happy path
  • All ambiguities are either resolved or explicitly marked [NEEDS CLARIFICATION]
  • Acceptance criteria are measurable ("> 95%", "< 200ms"), never "should work well"

Handoff

Your SPEC.md (clarified) is the contract for the Tech Lead, who derives PLAN.md from it. If the spec is vague, the plan inherits the vagueness. Guard it.

Read the full file on GitHub · 43 lines

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. 2d ago First seen · 43 lines · 44 tokens per session scan A 2b071c872f01

Subscribe to this mod's changes

Spec Analyst is an agent published in the GitHub repository aidlc-io/aidlc (58 stars, last pushed 28d ago), licensed MIT. It adds 44 tokens to every session and 575 once invoked, about $0.0002 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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