Add harness contract alignment checks

opencode/agents/developer.md

@@ -44,6 +44,8 @@ You are the senior developer.
 
 When `lead` delegates direct mode for a small, clear, low-risk change without using a slash command, treat it as an approved implementation task.
 
+Later adjustments for that same implementation go back to `developer`; keep continuity and do not expect `lead` to implement them.
+
 Before editing, identify:
 
 - objective;

opencode/docs/ai/evolution/runs/iteration-016-contract-prompt-alignment/analysis/overview.md

@@ -0,0 +1,32 @@
+# Overview - Iteration 016
+
+## Failure Pattern
+
+The harness checker had coverage gaps for command and agent prompt drift. It
+verified that agents and commands were documented, but not enough of the
+contract-to-prompt alignment was enforced mechanically.
+
+The follow-up review found three concrete risks:
+
+- prose evidence containing markdown filenames could be misread as a missing path;
+- ordered flows could pass when the required agent names appeared in the wrong order;
+- cross-agent checks could pass when a prompt matched only one invariant.
+
+## Root Cause
+
+The checker grew incrementally. Existing checks protected the lead router,
+`/feature`, and `/plan`, but `/evolve`, `/scope`, `/design`, and broader
+contract-to-prompt alignment were not covered consistently.
+
+## Applied Fix
+
+The checker now adds bounded checks for `/evolve`, `/scope`, `/design`, and
+agent-prompt invariants. The path parser now accepts only strings that look like
+standalone repository-relative file paths. Regression tests cover the previously
+observed false positive and false negatives.
+
+## Risk
+
+These checks are intentionally bounded regex checks, not a natural-language
+parser. Future prompt rewrites may need checker pattern updates when wording
+changes but the contract remains valid.

opencode/docs/ai/evolution/runs/iteration-016-contract-prompt-alignment/change_evaluation.json

@@ -0,0 +1,31 @@
+{
+  "iteration": 16,
+  "evaluates_iteration": 16,
+  "results": [
+    {
+      "change_id": "chg-16-1",
+      "predicted_fixes_confirmed": [
+        "evolve-order-drift",
+        "scope-order-drift",
+        "agent-invariant-drift",
+        "prose-evidence-path-false-positive"
+      ],
+      "predicted_fixes_not_confirmed": [],
+      "risk_tasks_regressed": [],
+      "risk_tasks_not_regressed": [
+        "public-checker-patterns-match-english-prompts",
+        "no-private-config-or-paths-in-public-artifacts",
+        "existing-feature-plan-checks-unchanged"
+      ],
+      "unpredicted_regressions": [],
+      "decision": "keep",
+      "evidence": [
+        "node --test scripts/check-harness.test.mjs passed 4/4 tests.",
+        "node scripts/check-harness.mjs passed.",
+        "Repository-level scripts/check.sh passed.",
+        "Public artifact leak check found no private paths, local MCP config, providers, credentials, or local search wiring."
+      ],
+      "notes": "The public port keeps only harness checker, prompt-contract, docs, and summary AHE evidence. Private opencode.json, MCP servers, provider config, local memory data, and raw transcripts are intentionally excluded."
+    }
+  ]
+}

opencode/docs/ai/evolution/runs/iteration-016-contract-prompt-alignment/change_manifest.json

@@ -0,0 +1,35 @@
+{
+  "iteration": 16,
+  "changes": [
+    {
+      "id": "chg-16-1",
+      "type": "new",
+      "description": "Add mechanical checker coverage for /evolve ordering, cross-agent prompt invariants, and /scope and /design command contracts.",
+      "files": [
+        "scripts/check-harness.mjs",
+        "scripts/check-harness.test.mjs",
+        "agents/developer.md",
+        "docs/ai/harness/checks.md"
+      ],
+      "failure_pattern": "Harness prompts and command contracts could drift without detection, and prior path validation treated prose evidence containing markdown filenames as a missing local path.",
+      "evidence": [
+        "docs/ai/evolution/runs/iteration-016-contract-prompt-alignment/evaluation.md",
+        "docs/ai/evolution/runs/iteration-016-contract-prompt-alignment/analysis/overview.md"
+      ],
+      "root_cause": "The checker validated coverage and a few critical flows, but did not enforce several command contracts or each configured agent invariant.",
+      "predicted_fixes": [
+        "evolve-order-drift",
+        "scope-order-drift",
+        "agent-invariant-drift",
+        "prose-evidence-path-false-positive"
+      ],
+      "risk_tasks": [
+        "public-checker-patterns-match-english-prompts",
+        "no-private-config-or-paths-in-public-artifacts",
+        "existing-feature-plan-checks-unchanged"
+      ],
+      "constraint_level": "tool",
+      "why_this_component": "The failure is mechanical checker coverage, so scripts/check-harness.mjs is the narrowest component. The developer prompt receives one explicit continuity rule to keep the documented contract reflected in the prompt."
+    }
+  ]
+}

opencode/docs/ai/evolution/runs/iteration-016-contract-prompt-alignment/evaluation.md

@@ -0,0 +1,31 @@
+# Iteration 016 - Contract/Prompt Alignment
+
+## Result
+
+Decision: `improve`.
+
+The checker now covers additional harness contracts:
+
+- `/evolve` must preserve the `evaluator -> debugger -> evolver` ordering.
+- `/scope` must preserve `researcher -> specifier` ordering.
+- `/design` must keep its Open Design contract.
+- Agent prompts must keep each configured invariant from `docs/ai/harness/agents.md`.
+- AHE JSON evidence prose may mention markdown filenames without being treated as a path.
+
+## Scenarios
+
+| Scenario | Expected | Actual |
+| --- | --- | --- |
+| `node --check scripts/check-harness.mjs` | pass | pass |
+| `node scripts/check-harness.mjs` | pass | pass |
+| Prose evidence mentions `PRODUCT.md/DESIGN.md` | pass | pass |
+| `/evolve` order is inverted | fail | fail |
+| `/scope` order is inverted | fail | fail |
+| `lead` prompt keeps only one invariant | fail | fail |
+| `git diff --check` | pass | pass |
+
+## Notes
+
+- This public artifact contains summary evidence only.
+- No raw transcripts, private providers, MCP configuration, credentials, or local
+  machine paths are included.

opencode/docs/ai/harness/checks.md

@@ -27,6 +27,9 @@ The harness check validates:
   `docs/ai/harness/commands.md`;
 - local `/feature` contract;
 - local `/plan` contract;
+- local `/evolve` contract;
+- minimum consistency between agent contracts and prompts in `agents/*.md`;
+- local `/scope` and `/design` contracts;
 - main docs in `docs/ai/harness/`;
 - benchmark references to replay and evidence taxonomy;
 - AHE run lifecycle under `docs/ai/evolution/runs/`;