Sourcegraph's AI coding assistant for chat, completions and edits that draws context from your whole codebase through code search.
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MySpec
Spec-driven development platform that interviews you about an idea and writes a four-file spec bundle for AI coding agents.
What is MySpec?
MySpec is an AI platform for spec-driven development. You paste in an idea, a Slack thread or a voice note, and an analyst agent extracts the shape of the problem. A structured interview of roughly 5 to 15 questions then clarifies scope, users, flows and edge cases before anything is written. The result is a four-file markdown bundle: constitution.md for locked project rules, requirements.md with EARS-style acceptance criteria, solution.md with Mermaid diagrams, and tasks.md with the plan. You refine the files in chat, download them as a ZIP into a .specs folder, and point Cursor or Claude Code at that folder, or use the MySpec MCP server to sync in both directions. Brownfield workflows, OpenSpec-compatible changes and a Spec Kit-compatible greenfield flow are listed as shipped. The service is in open beta with a free tier and no credit card, and plan limits cover members, projects, spec files, AI usage, public links and storage.
Use cases
- Turn a rough idea into a written spec
- Generate requirements with acceptance criteria
- Hand specs to Cursor or Claude Code
- Spec changes to an existing codebase
- Surface edge cases before coding
- Share specs with a team
Who it's for
Why use MySpec
- An interview step asks about scope and edge cases before code, so gaps show up while they are cheap to fix.
- The same four files travel with every agent prompt, which stops requirements from drifting over a long chat.
- Exporting a ZIP or using the MCP server fits tools you may already use, such as Cursor and Claude Code.
- A usage page shows monthly AI activity and organization limits, and owners are notified before limits are reached.
MySpec features
- Structured interview of about 5 to 15 questions
- Four-file bundle: constitution, requirements, solution and tasks
- EARS-style acceptance criteria
- Mermaid diagrams rendered live in the solution file
- Chat-based refinement that keeps the files consistent
- ZIP export for a .specs folder
- HTTP MCP server at mcp.myspec.dev for agents
- Brownfield workflows and OpenSpec-compatible changes
- Organizations, invitations and personal API tokens
- Public share links
MySpec integrations
How to get started with MySpec
- Describe the idea by pasting a paragraph, Slack thread or voice note.
- Answer the interview, a structured back-and-forth of about 5 to 15 questions on scope, users, flows and edge cases.
- Review the four markdown files and refine them in chat while the agents keep them coherent.
- Export the bundle as a ZIP into .specs, or connect the MySpec MCP server so your coding agent reads it directly.
MySpec limitations
- The service is in open beta and may change or be limited without notice
- Plan limits apply to members, projects, spec files, AI usage, links and storage
- Generated output can be inaccurate and needs review before use
- Paid plan prices are not published; check the official pricing page
MySpec pricing
Yes, MySpec has a free plan.
Prices can change and may vary by country or exclude tax. Check the official pricing page.
MySpec alternatives
The main MySpec alternatives listed on Debuly are Kiro, Graft (now Trail-code), agent-skills, AI Test Case Generator, Builder.io Fusion and Cody. The table compares pricing and platforms; order is A–Z.
| Tool | Pricing | Starting price | Platforms |
|---|---|---|---|
| MySpec | Freemium | — | Web, API |
| agent-skills | Open source | — | CLI, Codex plugin |
| AI Test Case Generator | Freemium | $79/yr | Web |
| Builder.io Fusion | Freemium | $24/mo | Web, VS Code extension |
| Cody | Contact sales | — | VS Code, JetBrains, Visual Studio, Web |
| Graft (now Trail-code) | Open source | — | CLI |
| Kiro | Freemium | $20/mo | Kiro IDE, CLI, Web, ACP-compatible IDEs |
agent-skills
Open-source pack of 24 engineering skills and eight slash commands that guide AI coding agents through the whole software lifecycle.
Open sourceVisit agent-skills (official site)
AI Test Case Generator
AI tool that turns requirements and user stories into QA test cases with negative and edge coverage, Gherkin scenarios and CSV or Xray exports.
Builder.io Fusion
AI-assisted visual development platform that works inside your own repo and design system, so designers and PMs can ship UI through pull requests.
Cody
Sourcegraph's AI coding assistant for chat, completions and edits that draws context from your whole codebase through code search.
Contact salesVisit Cody (official site)
Graft (now Trail-code)
Open source context layer that maps a codebase for coding agents and stores team learnings as Markdown files in git.
Open sourceVisit Graft (now Trail-code) (official site)
Kiro
Spec-driven AI coding tool that turns prompts into requirements, designs and tasks, with a free tier and credit-based paid plans.
FreemiumVisit Kiro (official site)
MySpec FAQ
Is MySpec free?
The roadmap lists an open beta with a free tier and no credit card required. The terms note that paid plans, if offered, are billed in advance and that pricing may change during beta.
What are the four spec files?
constitution.md holds locked project rules, requirements.md holds user stories and acceptance criteria, solution.md describes the design with Mermaid diagrams, and tasks.md lays out the build plan.
Does MySpec have an MCP server or API?
Yes. An HTTP MCP server runs at mcp.myspec.dev for hosted agents, and personal API tokens support unattended MCP access. The page also mentions an @myspec/mcp-server package.
Can MySpec work on an existing codebase?
Yes. Brownfield workflows produce a MySpec proposal and requirements delta, and OpenSpec-compatible changes are supported. A Spec Kit-compatible greenfield flow covers new projects.
What limits apply to MySpec plans?
Limits are set per organization and can cover members, projects, spec files, monthly and weekly AI usage, public links and storage. Owners and admins get warnings as limits near.
What are alternatives to MySpec?
Alternatives include GitHub Spec Kit, OpenSpec, Kiro and Traycer, which also build specs before code. Compare interview depth, export formats and agent integration.
Sources & verification
Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.
| Source | Type | Accessed |
|---|---|---|
| myspec.dev/ | official | |
| docs.myspec.dev/guides/usage-and-limits/ | docs | |
| myspec.dev/terms/ | official | |
| docs.myspec.dev/guides/organizations/ | docs |
Image credits
- Logo: from myspec.dev · fetched · Vendor trademark, used only to identify the product; removed on request
- Cover: none collected yet, so a generated tile is shown.
Spot an error? Report an issue with this listing. We also remove a logo or image on the owner's request.
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