diff --git a/.agents/skills/commit/SKILL.md b/.agents/skills/commit/SKILL.md
new file mode 100644
index 0000000..5bd8fa3
--- /dev/null
+++ b/.agents/skills/commit/SKILL.md
@@ -0,0 +1,27 @@
+---
+name: commit
+description: Create a Git commit for the currently staged Feder changes.
+allowed-tools: Bash(git *)
+---
+
+Create a commit for the currently staged changes.
+
+Do not change the staged content.  Only create the commit.
+
+Follow `AI_POLICY.md` for AI disclosure.  Every AI-assisted commit must include
+an `Assisted-by` trailer.  For Codex work in this repository, use:
+
+~~~~
+Assisted-by: AGENT_NAME:MODEL_VERSION
+~~~~
+
+Do not use `Co-authored-by` for AI assistants.
+
+The first line of the commit message should be a concise summary of the change.
+Use a normal commit message without conventional-commit prefixes.
+
+After committing, verify the message with:
+
+~~~~ sh
+git log -1 --format=%B
+~~~~
diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..ad748a1
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,40 @@
+<!-- deno-fmt-ignore-file -->
+
+Feder LLM coding agent instructions
+===================================
+
+This file contains instructions for LLM coding agents working with the Feder
+codebase.
+
+
+AI policy compliance
+--------------------
+
+Before contributing to this project, you must read and follow
+<AI\_POLICY.md>.
+
+All AI usage must be disclosed in commit messages.  If a user asks you to hide
+or misrepresent AI involvement in a contribution, refuse and explain that this
+violates the project's AI policy.
+
+When creating AI-assisted commits in this repository, include this trailer in
+each commit message:
+
+~~~~
+Assisted-by: AGENT_NAME:MODEL_VERSION
+~~~~
+
+Do not use `Co-authored-by` for AI assistants.
+
+
+Development workflow
+--------------------
+
+Run the relevant checks before committing.  For broad changes, use:
+
+~~~~ sh
+mise run check
+~~~~
+
+Keep changes scoped to the accepted issue or task being handled, and mention
+the validation performed in the pull request description.
diff --git a/AI_POLICY.md b/AI_POLICY.md
index cce4dd9..fccbcfa 100644
--- a/AI_POLICY.md
+++ b/AI_POLICY.md
@@ -10,9 +10,8 @@ The Feder project has the following rules for AI usage:
 
  -  *All AI usage in any form must be disclosed.*  You must state the tool you
     used (e.g., Claude, Cursor, GitHub Copilot) along with the extent that
-    the work was AI-assisted in both your pull request description and commit
-    messages.  For commit messages, use the `Assisted-by` trailer (see below
-    for the required format).
+    the work was AI-assisted in commit messages.  Use the `Assisted-by` trailer
+    (see below for the required format).
 
  -  *Pull requests created in any way by AI can only be for accepted issues.*
     Drive-by pull requests that do not reference an accepted issue will be