diff --git a/docs/ecosystem.md b/docs/ecosystem.md
index 9f2a90d..019cdcc 100644
--- a/docs/ecosystem.md
+++ b/docs/ecosystem.md
@@ -6,7 +6,7 @@ claim must match a mechanism. This page says what each sibling is and how chock
 | Repository | What it is |
 | :--- | :--- |
 | [chock-catalog](https://github.com/open-coder-ai/chock-catalog) | The policies, each graded by what it actually enforces. chock ships mechanism only and bundles no policies; the catalog is where `chock add` reads from |
-| [agentseam](https://github.com/open-coder-ai/agentseam) | The primitives layer under chock: one handler API over every agent's hooks, instruction files, plugin packaging and config, with a capability matrix that carries its provenance. chock's plugin packaging consumes it at build time |
+| [agentseam](https://github.com/open-coder-ai/agentseam) | The primitives layer for every coding agent: one handler API over their hooks, instruction files, plugin packaging and config, with a capability matrix that carries its provenance. chock is one thing built on it |
 | [context-report](https://github.com/open-coder-ai/context-report) | A signed report format for whether a plugin, hook, skill or `AGENTS.md` actually works; chock can export one |
 | [chock-threat-intel](https://github.com/open-coder-ai/chock-threat-intel) | A weekly, human-reviewed digest of agentic-AI threats scored against the catalog: enforced, advisory, or `policy wanted`. Feeds the roadmap |
 | [chock-claude-plugins](https://github.com/open-coder-ai/chock-claude-plugins) · [copilot](https://github.com/open-coder-ai/chock-copilot-plugins) · [cursor](https://github.com/open-coder-ai/chock-cursor-plugins) · [codex](https://github.com/open-coder-ai/chock-codex-plugins) | The catalog compiled by `chock plugin build` into each client's native plugin format. Generated only: CI rebuilds from source and fails on any difference |