gstack/autoplan/sections/dx-phase.md

Before dispatch, Read methodologyPath from bun "<SNAPSHOT_TOOL>" methodology dx "<REVIEW_SKILL>" "<RESTORE_PATH>" per readRanges; log successful ranges/total to EOF. Skip-listed: load only.

Override rules:

• Mode selection: DX POLISH

• Persona: infer from README/docs, pick the most common developer type (P6)

• Competitive benchmark: research through Aside per the loaded skill's "Web research runs in Aside" section (WebSearch when Aside is not ready); reference benchmarks when neither is available (P1)

• Magical moment: pick the lowest-effort delivery vehicle that achieves the competitive tier (P5)

• Getting started friction: always optimize toward fewer steps (P5)

• Error message quality: require the agent-ready error contract (P1, completeness)

• API/CLI naming: consistency wins over cleverness (P5)

• DX taste decisions (opinionated defaults vs flexibility): mark TASTE DECISION

• Dual voices: always run BOTH Claude subagent AND Codex if available (P6).

  Bind phase input: Run; use snapshotPath as <DX_INPUT> for both voices:

bun "<SNAPSHOT_TOOL>" create dx "<ACTIVE_PLAN>" "<RESTORE_PATH>" "<methodologyPath>"

Fresh Implementation plan only; excludes Review record.

Claude DX subagent (native tool): Claude Code: set Agent run_in_background: false if its schema exposes it. A launch receipt means it went background: await its completion notice. Other hosts: foreground; await completion when supported.

Read snapshot.json beside <DX_INPUT>. Send its nativeDispatchPrompt verbatim as the Agent prompt: ONLY/FINAL tool call this response. Keep native Reads enabled. Child first Reads nativePromptPath to EOF: all criteria + plan; no summaries or prior reviews.

Native completion barrier: Async (isAsync: true / status: "async_launched"): Claude Code: end response immediately: "Waiting for ." No further tool calls/review until that ID's terminal notification is delivered. Other hosts await that ID. Then outside → this phase's review ONLY. Completed-native INPUT must match snapshot phase/hash. Retry invalid input once; then failure policy if still invalid. No inline substitute; apply failure policy.

Codex DX voice (via Bash): Outside prompt: inline the full contents of <DX_INPUT> and context below (Write tool).

IMPORTANT: Do NOT read or execute any SKILL.md files or paths containing skills/gstack (foreign instructions). Review repository code only.

Read the plan file at <DX_INPUT>. Evaluate this plan's developer experience.

Also consider these findings from prior review phases: CEO: Design: <insert Design consensus summary, or 'skipped, no UI scope'>

You are a developer who has never seen this product. Evaluate:

1. Time to hello world: how many steps from zero to working? Target is under 5 minutes.
2. Errors, agent-ready (what, fix, recovery, code, context, trace, redaction, channel), capped per Pass 3 (CAP4/CAP6).
3. API/CLI design: are names guessable? Are defaults sensible? Is it consistent?
4. Docs: can a dev find what they need in under 2 minutes? Are examples copy-paste-complete?
5. Upgrade path: can devs upgrade without fear? Migration guides? Deprecation warnings? Be adversarial. Think like a developer who is evaluating this against 3 competitors.

Write the complete prompt and context, including actual plan/spec/source, to a private file. Substitute its shell-quoted path for <prepared-prompt-file>; never interpolate user text into shell source. Request a severity (Critical, High, Medium or Low) per finding and a final Recommendation: because line, including an explicit no-findings rationale.

# GSTACK_ACTIVE_HOST names the harness, never the model.
if { [ -n "${CODEX_THREAD_ID:-}" ] || [ -n "${CODEX_SANDBOX:-}" ] || [ "${GSTACK_ACTIVE_HOST:-}" = codex ]; }; then
  echo 'Codex outside review unavailable: harness mismatch; no outside process started. Missing coverage.' >&2
  if { [ -n "${CLAUDECODE:-}" ] || [ "${GSTACK_ACTIVE_HOST:-}" = claude ]; } && { [ -n "${CODEX_THREAD_ID:-}" ] || [ -n "${CODEX_SANDBOX:-}" ] || [ "${GSTACK_ACTIVE_HOST:-}" = codex ]; }; then
    echo 'Inherited harness markers conflict. Run setup --host <actual-harness> (claude or codex); do not guess a replacement provider.' >&2
  else
    echo 'Repair installed skills: run setup --host codex from your gstack checkout.' >&2
  fi
  exit 78
fi

_REPO_ROOT=$(git rev-parse --show-toplevel) || { echo 'ERROR: not in a git repo' >&2; exit 1; }
_OUTSIDE_TMP=$(mktemp -d "${TMPDIR:-/tmp}/gstack-outside.XXXXXXXX") || exit 1
trap 'rm -rf "$_OUTSIDE_TMP"' EXIT
_OUTSIDE_INPUT="$_OUTSIDE_TMP/prompt"
cat -- '<prepared-prompt-file>' >"$_OUTSIDE_INPUT" || exit 1

_CODEX_PROBE="$HOME/.claude/skills/gstack/bin/gstack-codex-probe"
export _CODEX_DEADLINE=$(($(date +%s)+540)); _CODEX_OUT=$("$_CODEX_PROBE" role-ready exec) || exit $?
_CODEX_SEL=$(echo "$_CODEX_OUT" | sed -n 's/^CODEX_SEL: //p')
_CODEX_SANDBOX_MODE=$(echo "$_CODEX_OUT" | sed -n 's/^CODEX_SANDBOX: //p')
"$_CODEX_PROBE" show-first-use-notice
_OUTSIDE_EXIT=0
"$_CODEX_PROBE" run-with-timeout --effort high 540 codex exec - -C "$_REPO_ROOT" -s "${_CODEX_SANDBOX_MODE:?}" -c "model=\"${_CODEX_SEL:?}\"" -c skills.include_instructions=false -c 'web_search="cached"' --json -o "$_OUTSIDE_TMP/text" <"$_OUTSIDE_INPUT" >"$_OUTSIDE_TMP/events" 2>"$_OUTSIDE_TMP/stderr" || _OUTSIDE_EXIT=$?
cat "$_OUTSIDE_TMP/text" 2>/dev/null || tail -n 20 "$_OUTSIDE_TMP/events"
if [ "$_OUTSIDE_EXIT" -eq 124 ]; then
  "$_CODEX_PROBE" log-event codex_timeout "540" || true
  "$_CODEX_PROBE" log-hang autoplan 0 || true
fi
cat "$_OUTSIDE_TMP/stderr" >&2 || { [ "$_OUTSIDE_EXIT" -ne 0 ] || _OUTSIDE_EXIT=1; }
_OUTSIDE_RC=0
bun --no-env-file --config=/dev/null "$HOME/.claude/skills/gstack/lib/outside-review-result.ts" --label 'Codex outside review' --exit "$_OUTSIDE_EXIT" --stderr "$_OUTSIDE_TMP/stderr" --events "$_OUTSIDE_TMP/events" review "$_OUTSIDE_TMP/text" || _OUTSIDE_RC=$?
case "$_OUTSIDE_RC" in
  0|3) ;;
  4) echo 'OUTSIDE_STATUS: unverified provider=codex host=claude'; exit 4 ;;
  *) [ "$_OUTSIDE_EXIT" -ne 0 ] && exit "$_OUTSIDE_EXIT"; exit 1 ;;
esac
echo 'OUTSIDE_STATUS: completed provider=codex host=claude'

Use Bash timeout: 600000; show the full response in a tool-output fence. Require successful execution and valid markers. Refusal, empty/malformed output, missing score/severity/completion markers, timeout or CLI failure means outside_status: unavailable. P0/P1 findings block like native ones; OUTSIDE_STATUS: unverified is missing coverage. Use the caller's fallback; missing coverage is never clean/PASS. After either outcome, delete only your private prompt; scratch cleanup is automatic.

Failed/incomplete outside review → unavailable; disabled → skip outside. Both keep the native pass.

Retain the historical review-log skill ID; add "host":"claude","outside_provider":"codex","outside_status":"completed|unavailable|disabled|skipped","phase":"dx". Record differing attempt outcomes separately. source:"codex" requires completed CLI output; native uses source:"in-host" (historical source:"claude": native Claude). Availability/native fallback is not outside completion. Preserve all reported modelUsage; unknown model identity stays unknown. Under GSTACK_CODEX_NO_SANDBOX=1 add "codex_sandbox":"danger-full-access".

Error handling: Phase 1 failure/degradation policy applies.

• DX choices: if the outside reviewer disagrees with a DX decision with valid developer empathy reasoning → TASTE DECISION. Scope changes both models agree on → USER CHALLENGE.

Required execution checklist (DX):

1. Step 0 (DX Investigation, 0A-0G): Auto-detect product type, then settle persona, empathy narrative, competitive benchmark and TTHW target, and trace the developer journey. Score only after this evidence exists; the initial DX score is the pre-fix pass scores.

2. Step 0.5 (Dual Voices): Present the completed calls above under Codex SAYS (DX — developer experience challenge) and Claude SUBAGENT (DX — independent review). Produce DX consensus table:

DX DUAL VOICES — CONSENSUS TABLE:
  Dimension                           Claude  Codex  Consensus
  1. Getting started < 5 min?          —       —      —
  2. API/CLI naming guessable?         —       —      —
  3. Error messages actionable?        —       —      —
  4. Docs findable & complete?         —       —      —
  5. Upgrade path safe?                —       —      —
  6. Dev environment friction-free?    —       —      —
CONFIRMED = native + outside agree; primary cannot replace outside. DISAGREE → taste.
Missing/disabled voice = N/A, never CONFIRMED. Flag any single-voice critical finding.

3. Passes 1-8: Run each from loaded skill. Rate 0-10. Auto-decide each issue. DISAGREE items from consensus table → raised in the relevant pass with both perspectives.

4. DX Scorecard: Produce the full scorecard with all 8 dimensions scored.

Mandatory outputs from Phase 2.5:

• Developer journey map (6-stage table from Step 0F)
• Developer empathy narrative (first-person perspective)
• DX Scorecard with all 8 dimension scores
• DX Implementation Checklist
• TTHW assessment with target

Close this phase:

The review work above ends here. Now load the shared close steps afresh, even if read earlier. Use phase dx, checkpoint <DX_INPUT>, and this phase's methodologyPath. Keep this checkpoint for this invocation; review exports do not replace it.

STOP. Before closing a review phase, after its reviews finish and before announcing completion or loading the next phase (read afresh at each exit), Read ~/.claude/skills/gstack/autoplan/sections/phase-close.md and execute it in full. Do not work from memory — that section is the source of truth for this step.