Spec-driven development tools compared
The tools people weigh Entalpa against, in one table and then one page each. Several are free, several are better than us at something, and each page says which. Two of them, Spec Kit and OpenSpec, you can import into Entalpa and keep using.
at a glance
| Tool | One current spec | Status | Traceability | Safe from AI | Round trip |
|---|---|---|---|---|---|
| CLAUDE.md / AGENTS.md | one prose file | no | no | no | — |
| GitHub Spec Kit | no, per feature | per feature | tasks → stories | no | yes |
| Kiro | no, per feature | task ticks | tasks → requirements | no | — |
| OpenSpec | specs/, archived | no | headings only | no | yes |
| BMAD | persona files | per story file | by convention | no | — |
| Tessl | per library | — | — | no | — |
| Entalpa | yes, over MCP | draft → verified | stakeholder → story → requirement | yes | — |
Cells describe the default, documented behaviour of each tool as of October 2026; the per-tool pages below carry the detail and the caveats. "One current spec" means a spec of the whole system as it is now, not one per feature or change; "Status" is per requirement; "Safe from AI" means a requirement you lock is never handed to the model to rewrite; "Round trip" means Entalpa imports the tool's files and exports back to them. Nothing is locked in: every project also exports to Markdown, CSV, JSON and ReqIF.
how the per-tool pages are written
- Every page has a section on what the other tool does better, before it argues anything for us.
- Differences are stated as mechanisms, not adjectives — what the code does, not how it feels.
- Every page ends with who should pick the other tool, in plain words.
Entalpa vs CLAUDE.md and AGENTS.md
A file the agent can edit versus a store that refuses the edit. Everything else about this comparison is downstream of that.
Entalpa vs GitHub Spec Kit
Spec Kit gives you a folder of feature specs. Entalpa turns it into one source of truth for the whole system: viewable, auditable, traceable and locked where it matters. Import it, and keep the workflow you like.
Entalpa vs AWS Kiro
Kiro's spec workflow runs inside Kiro, one folder per feature. Entalpa keeps one spec of the whole system and serves it over MCP to whatever agent you already run, Kiro included.
Entalpa vs OpenSpec
OpenSpec keeps your spec as folders in the repo. Entalpa imports them into one source of truth you can view, audit, trace and lock. Paste the repository, or upload it as a zip or a folder, and see your own spec that way, before you sign up.
Entalpa vs BMAD-METHOD
BMAD simulates a development organisation. Entalpa holds the requirements a real one argues about. Different problems, and the second one does not go away when you solve the first.
Entalpa vs Tessl
Tessl grounds your agent in other people's libraries. Entalpa grounds it in your rules. Both are grounding; they are not substitutes.
Entalpa vs Context7
Context7 stops your agent inventing a library's API. Entalpa stops it inventing yours. Both are MCP servers and there is no reason to choose.
Entalpa vs memory MCP servers
A memory server remembers what happened. A requirements store holds what was decided. The gap between those is where agents go wrong.
Entalpa vs ChatPRD
ChatPRD produces a document a person reads. Entalpa produces a structure an agent queries. Both start from 'describe what you want'; they end somewhere different.
Entalpa vs Jama Connect
Jama is the grown-up version of what Entalpa is doing, for teams that must prove compliance. Entalpa is that rigor served to a coding agent, self-serve, with no sales call.
Entalpa vs IBM DOORS
DOORS proved that locked, traceable requirements work. Entalpa takes that idea and serves it to the agent writing the code.