refactor(sdd): platform-owned dispatch hints — shared scripts carry no Codex literals

Responds to maintainer review of this branch: the dispatch-hint lines
were hardcoded Codex strings inside shared skill tooling that every
harness runs.

The per-role hint lines now live in a platform-owned data file,
skills/using-superpowers/references/codex-dispatch.hints, and the
task-brief/review-package scripts only relay the current role's line.
The relay is suppressed when CLAUDECODE is set (Claude Code's dispatch
templates already carry model selection) and on any harness with no
hints file; unknown harnesses fail toward printing, because a silent
no-op in the environment that needs the hint is the failure mode this
mechanism exists to prevent. Printing at the moment of dispatch is
load-bearing: skill text loaded at session start does not survive
context compaction, but script output reprints every round.

codex-tools.md's SDD dispatch section shrinks to the behavioral rules
(fork_turns: "none" always; copy the printed hint verbatim; reviewer
tier never exceeds implementer tier; no effort bumps; the <=0.144
inheritance fallback) and points at the hints file for values.

Tests cover the relay path, the per-role efforts, and the new
CLAUDECODE suppression case.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

skills/subagent-driven-development/scripts/review-package

@@ -13,6 +13,8 @@
 # does not survive context compaction, but this line is reprinted every round.
 set -euo pipefail
 
+script_dir=$(cd "$(dirname "$0")" && pwd)
+
 role=task-review
 if [ "${1:-}" = "--role" ]; then
   [ $# -ge 2 ] || { echo "usage: review-package [--role task-review|re-review|final-review] PLAN_FILE BASE HEAD [OUTFILE]" >&2; exit 2; }
@@ -20,12 +22,12 @@ if [ "${1:-}" = "--role" ]; then
   shift 2
 fi
 
-# Model/effort values are mirrored in using-superpowers/references/codex-tools.md
-# (they track Codex's spawn_agent allowlist) — update both together.
 case "$role" in
-  task-review)  hint_role=task-reviewer;      hint_effort=high ;;
-  re-review)    hint_role=scoped-re-reviewer; hint_effort=medium ;;
-  final-review) hint_role=final-reviewer;     hint_effort=high ;;
+  task-review)  hint_key=task-review ;;
+  # re-review maps onto the fix-review hints entry; the --role value itself
+  # is renamed in the next commit.
+  re-review)    hint_key=fix-review ;;
+  final-review) hint_key=final-review ;;
   *) echo "bad --role: ${role} (task-review|re-review|final-review)" >&2; exit 2 ;;
 esac
 
@@ -45,7 +47,7 @@ git rev-parse --verify --quiet "$head" >/dev/null || { echo "bad HEAD: $head" >&
 if [ $# -eq 4 ]; then
   out=$4
 else
-  dir=$("$(cd "$(dirname "$0")" && pwd)/sdd-workspace" "$plan")
+  dir=$("$script_dir/sdd-workspace" "$plan")
   out="$dir/review-$(git rev-parse --short "$base")..$(git rev-parse --short "$head").diff"
 fi
 
@@ -64,4 +66,16 @@ fi
 
 commits=$(git rev-list --count "${base}..${head}")
 echo "wrote ${out}: ${commits} commit(s), $(wc -c < "$out" | tr -d ' ') bytes"
-echo "dispatch (codex spawn_agent): role=${hint_role} fork_turns=none model=gpt-5.6-terra reasoning_effort=${hint_effort}"
+
+# Platform dispatch hints ride this output because the controller reads it
+# immediately before spawning; the lines themselves are owned by the platform
+# reference layer (using-superpowers/references/*-dispatch.hints), not this
+# script. Claude Code's dispatch templates carry model selection already, so
+# the relay is suppressed there and on any harness without a hints file.
+hints_file="$script_dir/../../using-superpowers/references/codex-dispatch.hints"
+if [ -z "${CLAUDECODE:-}" ] && [ -f "$hints_file" ]; then
+  hint_line=$(grep "^${hint_key}:" "$hints_file" | head -1 | cut -d: -f2- | sed 's/^ *//') || true
+  if [ -n "$hint_line" ]; then
+    echo "$hint_line"
+  fi
+fi

skills/subagent-driven-development/scripts/task-brief

@@ -18,10 +18,12 @@ plan=$1
 n=$2
 [ -f "$plan" ] || { echo "no such plan file: $plan" >&2; exit 2; }
 
+script_dir=$(cd "$(dirname "$0")" && pwd)
+
 if [ $# -eq 3 ]; then
   out=$3
 else
-  dir=$("$(cd "$(dirname "$0")" && pwd)/sdd-workspace" "$plan")
+  dir=$("$script_dir/sdd-workspace" "$plan")
   out="$dir/task-${n}-brief.md"
 fi
 
@@ -39,9 +41,16 @@ if [ ! -s "$out" ]; then
 fi
 
 echo "wrote ${out}: $(wc -l < "$out" | tr -d ' ') lines"
-# The dispatch hint rides this output because the controller reads it
-# immediately before spawning the implementer; skill text loaded at session
-# start does not survive context compaction, but this line reprints per task.
-# Model/effort values are mirrored in using-superpowers/references/codex-tools.md
-# (they track Codex's spawn_agent allowlist) — update both together.
-echo "dispatch (codex spawn_agent): role=implementer fork_turns=none model=gpt-5.6-terra reasoning_effort=high"
+
+# Platform dispatch hints ride this output because the controller reads it
+# immediately before spawning; the lines themselves are owned by the platform
+# reference layer (using-superpowers/references/*-dispatch.hints), not this
+# script. Claude Code's dispatch templates carry model selection already, so
+# the relay is suppressed there and on any harness without a hints file.
+hints_file="$script_dir/../../using-superpowers/references/codex-dispatch.hints"
+if [ -z "${CLAUDECODE:-}" ] && [ -f "$hints_file" ]; then
+  hint_line=$(grep "^implementer:" "$hints_file" | head -1 | cut -d: -f2- | sed 's/^ *//') || true
+  if [ -n "$hint_line" ]; then
+    echo "$hint_line"
+  fi
+fi