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claude/.claude/memory/blockers.md
Bastien Chanot 735b62a002 chore(memory): BDR-029 + LRN-040 + BLK-008 resolved (gstack browser on Ubuntu 26.04) 
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UyNYwD4UccVw9ZCFZyJX55
2026-06-23 16:59:23 +02:00

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type entry_prefix schema rules
blockers_registry BLK
id date friction real_cause solution status
BLK-XXX YYYY-MM-DD string (what was blocked) string (root cause, not symptom) string (workaround or fix)
open | resolved | upstream
Open blocker when friction > 15 min wasted. Close with real cause, not "moved on".
Link upstream issue / PR / commit when applicable.
Cause is bug in dependency → status upstream with pointer to tracker.

Blockers registry (BLK)

Index

ID Date Friction Status
BLK-001 2026-04-22 rtk curl breaks JSON pipelines upstream
BLK-002 2026-04-23 rmdir denied in sandbox on empty directory resolved
BLK-003 2026-05-12 scripts/screenshot.mjs hardcoded macOS path blocks PNG cards on Linux upstream
BLK-004 2026-05-20 /ship-feature wrapper at ~/.claude/commands/ points to deleted agent files post-refactor resolved
BLK-005 2026-05-21 gstack submodule rename (checkpoint→context-save) breaks profile entries resolved
BLK-006 2026-05-21 profile.sh current false-negative via ~/.claude symlink (cd not cd -P) resolved
BLK-007 2026-06-02 6 gstack source skills (ios-*, spec) unlinked post-bump — invisible to profiles + gstack on resolved

BLK-001 — rtk curl returns compressed schema in pipes

  • Date: 2026-04-22
  • Friction: pipelines like rtk curl ... | python -c "json.load(sys.stdin)" (or jq, awk) fail without clear error.
  • Real cause: rtk curl auto-compresses stdout regardless of TTY — documented in .claude/tasks/rtk-upstream-issue.md.
  • Solution:
    • Short-term workaround: exclude_commands=["curl"] in ~/.config/rtk/config.toml.
    • Alternative workaround: use rtk proxy.
    • Upstream fix: issue reported, see .claude/tasks/rtk-upstream-issue.md.
  • Status: upstream (rtk bug, workaround applied).

BLK-002 — rmdir denied in sandbox on empty directory

  • Date: 2026-04-23
  • Friction: couldn't delete ./tasks/ after emptying (post-migration to .claude/tasks/). rmdir tasks and rm -r tasks returned "Permission denied" even with empty dir and non-destructive intent.
  • Real cause: Claude Code sandbox blocks destructive commands (rm, rmdir, rm -rf) by default via harness permission gate, regardless of actual semantics. git rm through git passed (commit c721a36) — git treated as non-destructive tool.
  • Solution:
    • This session: git rm tasks/*.md handled files individually (via git rm, cleared gate). Git auto-detected renames to .claude/tasks/, so tasks/ directory removed implicitly at commit time.
    • If dir persists empty after git rm: ask user to run rmdir tasks manually.
  • Status: resolved (fixed via git rm + rename auto-detection; no rmdir needed in practice).

BLK-003 — scripts/screenshot.mjs hardcoded macOS path blocks PNG cards on Linux

  • Date: 2026-05-12
  • Friction: /darwin-skill Phase 3 generates result cards via node ~/.agents/skills/darwin-skill/scripts/screenshot.mjs <html> <png>. On Linux: script fails immediately — require('/Users/alchain/.npm-global/lib/node_modules/playwright/node_modules/playwright-core') resolves to a non-existent macOS user path. No PNG cards produced; Phase 3 falls back to markdown report only.
  • Real cause: upstream alchaincyf/darwin-skill author dev'd on macOS, shipped absolute path to their own homedir's global npm install of playwright. Zero portability layer (no PATH lookup, no playwright bare require, no fallback to npx).
  • Solution:
    • Workaround (used 2026-05-12): skip PNG generation, deliver markdown + HTML cards (HTML viewable in browser without playwright).
    • Local patch: npm i -g playwright then replace require('/Users/alchain/...') with require('playwright'). Two lines edit.
    • Spec-documented fallback: npx playwright screenshot "file:///path/to/card.html#<theme>" out.png --viewport-size=960,1280 --wait-for-timeout=2000 — works without modifying the file, costs ~150MB chromium download.
    • PR upstream to github.com/alchaincyf/darwin-skill once tested.
  • Status: upstream (third-party skill at ~/.agents/skills/darwin-skill/scripts/screenshot.mjs, not in any of our repos).

BLK-004 — /ship-feature wrapper references 6 deleted agent files

  • Date: 2026-05-20
  • Friction: /ship-feature invocation loads wrapper at ~/.claude/commands/ship-feature.md. Wrapper says Load and follow strictly: .claude/agents/{ship-feature,analyzer,designer,implementer,reviewer,tester}.md. 5 of 6 paths missing on disk (only analyzer.md survives). User hits blocker — wrapper without orchestrator.
  • Real cause: refactor commits 0241e1d ("extract skill logic into standalone agent files") + 21960e0 ("changed orchestrators into skills") migrated orchestrator from .claude/agents/ship-feature.md into ~/.claude/skills/ship-feature/SKILL.md and replaced custom sub-agents (designer/implementer/reviewer/tester) with superpowers skills (brainstorming, writing-plans, subagent-driven-development, requesting-code-review, finishing-a-development-branch). Wrapper at ~/.claude/commands/ship-feature.md never updated, never deleted. Untracked file — survived all refactor commits silently.
  • Solution: rm ~/.claude/commands/ship-feature.md. Skill ~/.claude/skills/ship-feature/SKILL.md (name: ship-feature, disable-model-invocation: true) becomes sole /ship-feature resolver. SKILL.md references only existing agents: plugin-advisor.md, analyzer.md, doc-syncer.md.
  • Status: resolved.

BLK-005 — /profile set full warns missing: checkpoint after gstack upstream rename

  • Date: 2026-05-21
  • Friction: /profile set full (and dev, backend, web, web-full) emits ⚠ missing: checkpoint — try: bash link.sh. Running bash link.sh reports ✅ All symlinks already up to date. Next: bash install-plugins.sh — dead-end loop. User cannot resolve the warning by following the suggested next step.
  • Real cause: gstack upstream renamed the checkpoint skill to context-save (Claude Code now treats /checkpoint as a native rewind alias, shadowing the gstack skill). New skill in skills-external/gstack/context-save/SKILL.md carries the description "Formerly /checkpoint — renamed because Claude Code treats /checkpoint as a native rewind alias". Five lib/profiles/*.profile files still listed the dead name. link.sh only symlinks repo dirs into ~/.claude/ — it cannot materialize a skill that no longer exists upstream, so its suggested action was misleading.
  • Solution: s/checkpoint/context-save/ in lib/profiles/{dev,backend,full,web,web-full}.profile (commit 69c5ded). CLAUDE.md:193 routing line Save progress, checkpoint, resume → invoke context-save updated locally, left uncommitted because the file holds unrelated in-progress graphify section work. Verify: bash lib/profile.sh set full now outputs ✓ enabled: context-save with no warning.
  • Status: resolved.

BLK-006 — bash lib/profile.sh current false-negative when invoked via ~/.claude/lib/ symlink

  • Date: 2026-05-21
  • Friction: bash "$HOME/.claude/lib/profile.sh" current returns none (all gstack skills enabled — no profile set) even when a profile IS applied + 14 gstack__* entries sit in the repo's skills-disabled/. User cannot detect active profile via the official command. Same script invoked from inside the repo directory (bash lib/profile.sh current) returns the correct answer — invocation-path-dependent behavior is the worst kind of bug to diagnose.
  • Real cause: lib/profile.sh:43 set REPO="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)". Default bash cd preserves symlinks (logical pathname mode, set -P off). When the script is invoked via the ~/.claude/lib/profile.sh symlink (link.sh wires ~/.claude/lib -> <repo>/lib), $BASH_SOURCE[0] is the symlinked path, dirname returns ~/.claude/lib, cd .. lands at ~/.claude, and pwd returns the logical path /home/bchanot-ubuntu/.claude. $SKILLS_DIR="$REPO/skills" still works because ~/.claude/skills happens to be a symlink to the repo's skills/. But $DISABLED_DIR="$REPO/skills-disabled" resolves to ~/.claude/skills-disabled — a real sibling directory created at some earlier point containing only 2 stale npx-skill symlinks (darwin-skill, find-skills). cmd_current scans this near-empty dir, finds 0 gstack__* entries, returns the "none" sentinel.
  • Solution: REPO="$(cd -P "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)" (commit a4558ee). -P forces physical-path resolution so $REPO is always the real repo path regardless of how the script is invoked. Verify: bash "$HOME/.claude/lib/profile.sh" current now returns full (100% match, 14 gstack skills disabled).
  • Status: resolved. Follow-up: ~/.claude/skills-disabled/ (real dir with only darwin-skill/find-skills symlinks) is orphaned — these npx skills are already symlinked into <repo>/skills/ by link.sh, so the disabled-side copies serve no purpose. Could be deleted to remove confusion, but harmless as-is.

BLK-007 — 6 gstack source skills (ios-*, spec) unlinked — invisible to profile system + gstack on

  • Date: 2026-06-02
  • Friction: skills-external/gstack/ has 53 source skills; 6 (ios-clean, ios-design-review, ios-fix, ios-qa, ios-sync, spec) exist ONLY as source — NOT symlinked into skills/ (enabled) nor skills-disabled/gstack__* (parked). So invisible to Claude AND untouched by reset/gstack on (both operate on parked gstack__* only). Surfaced while adding gstack on|off: comm of gstack source vs full.profile.
  • Real cause: gstack submodule bump added new skills; gstack's own ./setup (source of truth for per-skill symlinks per link.sh) not re-run → symlinks never created. Same lifecycle gap class as toggle-external-source-only-state (LRN-007). NOT a full.profile bug — full curated by design (BDR-017 caveat: "full excludes rarely-used gstack skills"). Initial "full omits ios = bug" flag was WRONG, self-corrected (see EVAL-002).
  • Solution applied (NOT full ./setup — surgical, no side effects): (1) Linked spec only — mkdir skills/spec + ln -snf <abs>/skills-external/gstack/spec/SKILL.md skills/spec/SKILL.md, matching gstack setup:440-476 (per-skill real dir + SKILL.md symlink, name from frontmatter). (2) Added spec to full.profile + web-full.profile planning sections (must be in active profile full else set full re-disables it). (3) iOS 5 skills deliberately NOT linked — Linux host, device-farm needs Mac daemon + Tailscale + iOS devices = dead skills + token cost. (4) Completed .gitignore gstack allowlist: added all 12 missing (spec, 5 ios-*, 6 parked document-generate/landing-report/scrape/setup-gbrain/skillify/sync-gbrain), removed stale checkpoint (BLK-005 rename). Reason: gstack on (BDR-018) moves parked skills into skills/ — any gstack skill missing from allowlist = untracked git noise on enable.
  • Verified: profile show full+web-full → spec enabled; allowlist drift recheck EMPTY; spec skill now visible to Claude.
  • Status: resolved. iOS = intentional exclusion (re-linkable via gstack ./setup on a Mac). See gstack-gitignore-allowlist-completeness (LRN-025).

BLK-008 — gstack ./setup fails on Ubuntu 26.04 — Playwright chromium unsupported

  • Date: 2026-06-23

  • Friction: fresh Ubuntu 26.04, make install / make plugin → "Failed to install browsers / ERROR: Playwright does not support chromium on ubuntu26.04-x64" → "GStack ./setup failed". Non-fatal in our wrapper (warn only) but gstack's browser (/browse, /qa, design screenshots) is silently dead once gstack is enabled.

  • Real cause: Playwright 1.58.2 (pinned in the gstack submodule) registry lists ubuntu20.04/22.04/24.04 only; 26.04 released later → not in list → getHostPlatform errors. Pure OS-newness, not an install bug.

  • Solution: gated export PLAYWRIGHT_HOST_PLATFORM_OVERRIDE=ubuntu24.04-x64 (ubuntu >24.04 only) before gstack setup + persisted to .bashrc for runtime. Playwright then pulls a Chrome-for-Testing fallback build for ubuntu24.04. Verified on 26.04: ldd resolves all libs + real headless render OK.

  • Status: resolved (commit 211c7d4). Residual: exact rev 1208 launch not in-session-tested (sandbox download hung at extraction); proved via sibling rev 1228 same-platform CfT build. Confirm on next real make plugin. Proper upstream fix = gstack bumps Playwright to a version that lists ubuntu26.04. See LRN-038.

  • 2026-06-23 UPDATE — Solution REVERTED, status downgraded to UPSTREAM/open (commit b9c3937): the PLAYWRIGHT_HOST_PLATFORM_OVERRIDE solution above does NOT work on 26.04. The fallback build downloads to 100% then HANGS at extraction (chrome binary never appears, no headless-shell download starts; reproduced on real machine + sandbox) → turned a 0.5s fast-fail into an install-blocking hang (user Ctrl+C). Reverted to the fast-fail (non-fatal; gstack OFF by default, browser only for /browse,/qa,screenshots). The earlier "verified ldd + headless render" was an isolated test on a sibling already-extracted build (rev 1228) — it masked the rev-1208 install-path hang. Real fix = upstream: gstack bumps Playwright to a version that lists ubuntu26.04. Until then gstack's browser is unavailable on 26.04, install completes cleanly. See LRN-038 correction.

  • 2026-06-23 FINAL — RESOLVED (commit 3b8ffb1): gstack browser now works on Ubuntu 26.04. Two layers fixed: (1) bumped gstack's pinned Playwright 1.58.2 → 1.61 (bun add playwright@latest in the submodule; 1.61 ships a native ubuntu26.04 build — chromium rev 1228), automated in the installer (gstack_bump_playwright_if_unsupported, idempotent, OS-gated); (2) GSTACK_CHROMIUM_NO_SANDBOX=1 to work around the AppArmor userns restriction (sysctl kernel.apparmor_restrict_unprivileged_userns=1), persisted to .bashrc + installer Step 9 (sysctl-gated). Verified end-to-end: browse goto https://example.com → "Navigated (200)". Caveat: the Playwright bump is a local submodule edit, reset by git submodule update, re-applied by the next install. See BDR-029, LRN-040.