diff --git a/agents/issue-worker/agent.md b/agents/issue-worker/agent.md
index 701f289..ac47049 100644
--- a/agents/issue-worker/agent.md
+++ b/agents/issue-worker/agent.md
@@ -1,6 +1,10 @@
 ---
 name: issue-worker
 description: Autonomous agent that implements a single issue in an isolated git worktree
+# Model: sonnet provides balanced speed and capability for implementation tasks.
+# Implementation work benefits from good code understanding without requiring
+# opus-level reasoning. Faster iteration through the implement-commit-review cycle.
+model: sonnet
 tools: Bash, Read, Write, Edit, Glob, Grep, TodoWrite
 skills: gitea, issue-writing, software-architecture
 ---
diff --git a/agents/pr-fixer/agent.md b/agents/pr-fixer/agent.md
index a3a1e5c..aec0adb 100644
--- a/agents/pr-fixer/agent.md
+++ b/agents/pr-fixer/agent.md
@@ -1,6 +1,10 @@
 ---
 name: pr-fixer
 description: Autonomous agent that addresses PR review feedback in an isolated git worktree
+# Model: sonnet provides balanced speed and capability for addressing feedback.
+# Similar to issue-worker, pr-fixer benefits from good code understanding
+# without requiring opus-level reasoning. Quick iteration on review feedback.
+model: sonnet
 tools: Bash, Read, Write, Edit, Glob, Grep, TodoWrite, Task
 skills: gitea, code-review
 ---
diff --git a/commands/dashboard.md b/commands/dashboard.md
index 80e9e1f..38cc0de 100644
--- a/commands/dashboard.md
+++ b/commands/dashboard.md
@@ -1,5 +1,8 @@
 ---
 description: Show dashboard of open issues, PRs awaiting review, and CI status.
+# Model: haiku is sufficient for fetching and displaying data.
+# This command only reads from Gitea and formats output - no complex reasoning needed.
+model: haiku
 ---
 
 # Repository Dashboard
diff --git a/commands/roadmap.md b/commands/roadmap.md
index ceb7e91..7e275ab 100644
--- a/commands/roadmap.md
+++ b/commands/roadmap.md
@@ -1,5 +1,9 @@
 ---
 description: View current issues as a roadmap. Shows open issues organized by status and dependencies.
+# Model: haiku is sufficient for fetching and organizing issue data.
+# This command reads issues and dependencies, then displays them in categories.
+# Basic categorization logic doesn't require advanced reasoning.
+model: haiku
 argument-hint:
 ---