tests: update SDD assertions and prompts to current skill behavior

The SDD skill tests still asserted on pre-rename skill text, so correct
model answers failed the suite:

- "Read at beginning" asserted "Step 1|beginning|start|Load Plan";
  the current skill has no numbered steps or Load Plan phase (setup
  covers it: "Read the plan once" during Setup). A live run today
  failed this assertion when the model correctly answered "during
  setup". Pattern now accepts setup/before-dispatch paraphrases while
  still requiring an at-the-start answer.
- "Provides text directly" asserted the removed provide-full-task-text
  behavior; SDD now routes task requirements through brief files
  (scripts/task-brief). The test now asks brief-file-vs-whole-plan and
  asserts the brief-based flow.
- The integration test's prompt and summary told the agent to
  "provide full task text to subagents (don't make them read files)",
  contradicting the skill it verifies; reworded to the task-brief flow.
  Also gave its direct `timeout 1800 claude -p` the same </dev/null
  stdin guard as run_claude.

Live-LLM tests; verified with bash -n on every touched file.

Part of #2130; defects documented in PR #2071 by @ericyen97903-lab.

CLAUDE.md

@@ -101,7 +101,7 @@ Skills are not prose — they are code that shapes agent behavior. If you modify
 
 ## Eval harness
 
-Skill-behavior evals live in [superpowers-evals](https://github.com/prime-radiant-inc/superpowers-evals/), cloned into `evals/` — see `evals/README.md` for setup. Quorum (the harness CLI, one part of that eval lab) drives real coding-agent CLIs — Claude Code, Codex, Gemini, and others — through a Gauntlet QA agent and grades them against scenario acceptance criteria plus deterministic post-checks. Plugin-infrastructure tests still live at `tests/`.
+Skill-behavior evals live in [superpowers-evals](https://github.com/prime-radiant-inc/superpowers-evals/), cloned into `evals/` — see `evals/README.md` for setup. Drill (the harness) drives real tmux sessions of Claude Code / Codex / Gemini CLI and judges skill compliance with an LLM verifier. Plugin-infrastructure tests still live at `tests/`.
 
 ## Understand the Project Before Contributing
 

docs/testing.md

@@ -14,23 +14,22 @@ Live in `tests/`. Currently:
 - `tests/codex-plugin-sync/` — bash sync verification.
 - `tests/kimi/` — bash/Python checks for Kimi plugin manifest wiring.
 - `tests/claude-code/test-helpers.sh`, `analyze-token-usage.py` — utilities used by remaining bash tests.
-- `tests/claude-code/test-subagent-driven-development.sh` — agent-can-describe-SDD test (no quorum counterpart; tests description-recall, not behavior).
-- `tests/claude-code/test-subagent-driven-development-integration.sh` — extended SDD integration with token analysis (quorum covers the YAGNI subset; bash adds commit-count, Claude Code task-tracking, and token telemetry assertions).
-- `tests/claude-code/test-worktree-native-preference.sh` — RED-GREEN-REFACTOR validation for worktree skill (quorum covers the PRESSURE phase; bash also covers RED/GREEN baselines).
-- `tests/explicit-skill-requests/` — Haiku-specific, multi-turn, and skill-name-prompted tests not covered by quorum.
+- `tests/claude-code/test-subagent-driven-development.sh` — agent-can-describe-SDD test (no drill counterpart; tests description-recall, not behavior).
+- `tests/claude-code/test-subagent-driven-development-integration.sh` — extended SDD integration with token analysis (drill covers the YAGNI subset; bash adds commit-count, Claude Code task-tracking, and token telemetry assertions).
+- `tests/claude-code/test-worktree-native-preference.sh` — RED-GREEN-REFACTOR validation for worktree skill (drill covers the PRESSURE phase; bash also covers RED/GREEN baselines).
+- `tests/explicit-skill-requests/` — Haiku-specific, multi-turn, and skill-name-prompted tests not covered by drill.
 
 Run plugin tests via the relevant directory's `run-*.sh` or `npm test`.
 
 ## Skill behavior evals
 
-Live in `evals/` (the [superpowers-evals](https://github.com/prime-radiant-inc/superpowers-evals/) eval lab, since renamed from Drill). Quorum is the harness CLI — one part of the system: it drives real coding-agent CLIs through a Gauntlet QA agent and grades them against each scenario's acceptance criteria plus deterministic post-checks. Scenarios live at `evals/scenarios/<name>/`. See `evals/README.md` for setup, the container runtime, and the safety model. Quick start (local break-glass run):
+Live in `evals/`. Drill is the harness; scenarios live at `evals/scenarios/*.yaml`. See `evals/README.md` for setup. Quick start:
 
 ```bash
 cd evals
-bun install
-export SUPERPOWERS_ROOT=/path/to/superpowers
-bun run quorum run scenarios/triggering-test-driven-development --coding-agent claude
-bun run quorum show <run-dir>
+uv sync --extra dev
+export ANTHROPIC_API_KEY=sk-...
+uv run drill run triggering-test-driven-development -b claude
 ```
 
-Quorum scenarios are slow (3-30+ minutes each) and run real LLM sessions in permissive modes — read `evals/README.md`'s Live Eval Risk section first. Only the static gates (`bun run check`, `bun run quorum check`) are safe for public CI; the natural follow-up remains a tiered model (static gates on PR, live sweep nightly + on-demand).
+Drill scenarios are slow (3-30+ minutes each) and run real LLM sessions. They are not part of CI today; the natural follow-up is a tiered model (fast subset on PR, full sweep nightly + on-demand).

tests/claude-code/test-helpers.sh

@@ -15,8 +15,9 @@ run_claude() {
         cmd+=(--allowed-tools="$allowed_tools")
     fi
 
-    # Run Claude in headless mode with timeout
-    if timeout "$timeout" "${cmd[@]}" > "$output_file" 2>&1; then
+    # Run Claude in headless mode with timeout. Redirect stdin from
+    # /dev/null so the CLI can't block waiting for input and hang the suite.
+    if timeout "$timeout" "${cmd[@]}" > "$output_file" 2>&1 < /dev/null; then
         cat "$output_file"
         rm -f "$output_file"
         return 0

tests/claude-code/test-subagent-driven-development-integration.sh

@@ -23,7 +23,7 @@ echo "========================================"
 echo ""
 echo "This test executes a real plan using the skill and verifies:"
 echo "  1. Plan is read once (not per task)"
-echo "  2. Full task text provided to subagents"
+echo "  2. Task requirements routed to subagents via brief files"
 echo "  3. Subagents perform self-review"
 echo "  4. Spec compliance review before code quality"
 echo "  5. Review loops when issues found"
@@ -136,7 +136,7 @@ I want you to execute the implementation plan at docs/superpowers/plans/implemen
 
 IMPORTANT: Follow the skill exactly. I will be verifying that you:
 1. Read the plan once at the beginning
-2. Provide full task text to subagents (don't make them read files)
+2. Route each task's requirements to subagents via a task brief file (don't make them read the whole plan)
 3. Ensure subagents do self-review before reporting
 4. Run spec compliance review before code quality review
 5. Use review loops when issues are found
@@ -150,7 +150,7 @@ PROMPT="Execute the implementation plan at docs/superpowers/plans/implementation
 
 IMPORTANT: Follow the skill exactly. I will be verifying that you:
 1. Read the plan once at the beginning
-2. Provide full task text to subagents (don't make them read files)
+2. Route each task's requirements to subagents via a task brief file (don't make them read the whole plan)
 3. Ensure subagents do self-review before reporting
 4. Run spec compliance review before code quality review
 5. Use review loops when issues are found
@@ -164,7 +164,7 @@ PLUGIN_DIR=$(cd "$SCRIPT_DIR/../.." && pwd)
 # other concurrent claude sessions.
 echo "Running Claude (plugin-dir: $PLUGIN_DIR, cwd: $TEST_PROJECT)..."
 echo "================================================================================"
-cd "$TEST_PROJECT" && timeout 1800 claude -p "$PROMPT" --plugin-dir "$PLUGIN_DIR" --allowed-tools=all --permission-mode bypassPermissions 2>&1 | tee "$OUTPUT_FILE" || {
+cd "$TEST_PROJECT" && timeout 1800 claude -p "$PROMPT" --plugin-dir "$PLUGIN_DIR" --allowed-tools=all --permission-mode bypassPermissions < /dev/null 2>&1 | tee "$OUTPUT_FILE" || {
     echo ""
     echo "================================================================================"
     echo "EXECUTION FAILED (exit code: $?)"
@@ -316,7 +316,7 @@ if [ $FAILED -eq 0 ]; then
     echo ""
     echo "The subagent-driven-development skill correctly:"
     echo "  ✓ Reads plan once at start"
-    echo "  ✓ Provides full task text to subagents"
+    echo "  ✓ Routes task requirements via brief files"
     echo "  ✓ Enforces self-review"
     echo "  ✓ Runs spec compliance before code quality"
     echo "  ✓ Spec reviewer verifies independently"

tests/claude-code/test-subagent-driven-development.sh

@@ -4,7 +4,7 @@
 #
 # No drill coverage: this test asks the agent to *describe* SDD (string-
 # matches its verbal explanation against expected keywords like
-# "self-review", "skeptical", "worktree", "Step 1", "loop"). Drill scenarios
+# "self-review", "skeptical", "worktree", "setup", "loop"). Drill scenarios
 # test behavior (real subagent dispatch, plan-following, review loops),
 # not description-recall. Kept by design.
 set -euo pipefail
@@ -83,7 +83,7 @@ else
     exit 1
 fi
 
-if assert_contains "$output" "Step 1\|beginning\|start\|Load Plan" "Read at beginning"; then
+if assert_contains "$output" "beginning\|start\|setup\|before.*dispatch\|before.*task" "Read at beginning"; then
     : # pass
 else
     exit 1
@@ -133,16 +133,16 @@ echo ""
 echo "Test 7: Task context provision..."
 
 output=$(run_claude "In subagent-driven-development, how does the controller provide task information to the implementer subagent? Answer using exactly this structure:
-Controller provides: <directly or by file>
-Implementer must read plan file: <yes or no>" "$CLAUDE_PROMPT_TIMEOUT")
+Controller provides: <brief file or whole plan file>
+Implementer must read whole plan file: <yes or no>" "$CLAUDE_PROMPT_TIMEOUT")
 
-if assert_contains "$output" "provide.*directly\|full.*text\|paste\|include.*prompt" "Provides text directly"; then
+if assert_contains "$output" "task-brief\|brief file\|brief.*path\|Controller provides:.*brief" "Provides task brief file"; then
     : # pass
 else
     exit 1
 fi
 
-if assert_contains "$output" "Implementer must read plan file:.*no" "Doesn't make subagent read file"; then
+if assert_contains "$output" "Implementer must read whole plan file:.*no" "Doesn't make subagent read whole plan"; then
     : # pass
 else
     exit 1