feat(harness): route code and fix to sonnet by default (POC)

agents/code.md

@@ -4,7 +4,7 @@ description: >-
   Implementation specialist for issues. Reads triaged issues, implements
   fixes following repo conventions, runs tests and linters, and commits to a
   feature branch. Use when implementing a fix or feature from a triaged issue.
-model: opus
+model: sonnet
 skills:
   - code-implementation
 ---

agents/fix.md

@@ -5,7 +5,7 @@ description: >-
   reviewers, implements targeted fixes on the existing PR branch, runs tests
   and linters, and commits the result. Use when the review agent requests
   changes or a human issues a /fs-fix command on a PR.
-model: opus
+model: sonnet
 skills:
   - fix-review
 ---

harness/code.yaml

@@ -12,7 +12,7 @@
 # Only the post-script, running on the runner with PUSH_TOKEN, can write.
 agent: agents/code.md
 doc: docs/code.md
-model: opus
+model: sonnet
 image: ghcr.io/fullsend-ai/fullsend-code@sha256:de3ecbd7719a1927c983142ada96475f3314d2505d0f258bcf19c31411856eb6
 policy: policies/base.yaml
 openshell:

harness/fix.yaml

@@ -12,7 +12,7 @@
 # Only the post-script, running on the runner with PUSH_TOKEN, can write.
 agent: agents/fix.md
 doc: docs/fix.md
-model: opus
+model: sonnet
 image: ghcr.io/fullsend-ai/fullsend-code@sha256:de3ecbd7719a1927c983142ada96475f3314d2505d0f258bcf19c31411856eb6
 policy: policies/base.yaml
 openshell: