tdd vs Postman
tdd is a plugin bundle for AI coding tools published by iowarp. Marketplaces we read that list it: 1 (Community GitHub marketplaces). Postman is a plugin bundle for AI coding tools published by postmanlabs. Marketplaces we read that list it: 2 (Claude Code: claude-plugins-official, Community GitHub marketplaces). As of our marketplace pass on 2026-10-14. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  tdd |  Postman |
|---|---|---|
| Community marketplace iowarp/clio-kit | Listed Version: 0.4.0 Forks (GitHub): 5 Stars (GitHub): 8 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 2.0.1 Forks (GitHub): 7 Stars (GitHub): 15 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | tdd | Postman |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 8 (worse) | 15 (better) |
| Forks (GitHub) (differs) | 5 (worse) | 7 (better) |
| Last release | Not published | Not published |
| Where it runs | Installs as a plugin bundle | Installs as a plugin bundle |
| Transport | Not stated | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | Not published | 1 |
| Parts of the bundle (differs) | Not published | 18 |
| Licence | Apache-2.0 | Apache-2.0 |
| Repository (differs) | github.com/iowarp/clio-coder | github.com/postmanlabs/postman-plugin |
| Changes in the last 7 days | 2 | 2 |
| First seen (differs) | 2026-10-13 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
tdd
Builds a feature or fix test-first, red to green at pre-agreed public seams, one vertical slice at a time. Not for designing benchmark criteria; use experiment-protocol.
Postman
Work with Postman from your agent: bootstrap a repo's Postman setup, mock an API before it's implemented, run collection and governance checks in CI, monitor a live endpoint, deploy and debug Postman Flows, and publish generated API documentation.
How to run each
tdd As a Claude Code plugin
/plugin marketplace add iowarp/clio-kit
/plugin install tdd@clio-kitPostman As a Claude Code plugin
/plugin install postman@claude-plugins-officialCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: tdd · What it can do: Postman · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.