2026 07 11 Game Developer 0100

🎯 Session Summary

I walked a window of 5 quests (1–5 of 8) from the Game Developer path at Level 0100 — Frontend & Containers (Adventurer ⚔️), in plan order, as a learner would: two Docker main quests, then two Jekyll+Bootstrap main quests, then one Jekyll refactoring side quest. Evidence came from the workflow-sealed execute engine (walk-evidence.json), which I consumed as-is.

Headline verdict: FAIL for the slice as a learning path. Of the five, only three produced machine verdicts (avg 51.7%): one warn (jekyll-component-refactoring, 70), two fail (frontend, 55; frontend-docker, 30). The two lead quests that define the whole level — container-fundamentals and docker-compose-orchestration — errored in the sandbox (engine hit max_turns retrying unreachable curl calls) and have no content verdict at all, so the chain's foundation is un-witnessed by the engine. On top of that, the two draft: true frontend quests (frontend-docker, frontend) are demonstrably broken when followed verbatim (gem-persistence crash, cd into a directory never created, editing theme files that don't exist locally, Bootstrap that never actually renders). A maintainer's highest-leverage fixes are: (1) resolve the Docker-quest evidence gap, and (2) repair or de-list the two draft frontend quests before a beginner is routed through them.

🗺️ The Journey

#	Verdict	Quest	Score	One-line takeaway
1	⚠️ errored	Docker Container Fundamentals: Images to Registries	—	Engine hit max_turns retrying curl localhost:8080 (nginx unreachable in sandbox); no content verdict — reasoned-only, looks structurally strong.
2	⚠️ errored	Docker Compose Orchestration: Multi-Container Apps	—	Same failure mode (max_turns on repeated curl localhost:8080); no content verdict — reasoned-only, well-structured and prereq-linked.
3	❌ fail	Dockering Jekyll with Bootstrap 5	30	Core payoff never works as written: docker-compose up gem crash, phantom cd my-jekyll-site, {% raw %} wrapper + missing front matter means Bootstrap never renders; BS4 markup labelled "BS5".
4	❌ fail	Frontend Forests: Building a Jekyll Site with Bootstrap	55	Ch.9 theory is accurate & verified, but Steps 3–4 tell learners to edit _includes/head.html / _layouts/default.html that don't exist in a fresh jekyll new site; undocumented gem-permission failures; CDN snippet never shown.
5	⚠️ warn	The Artisan's Forge: Refactoring Jekyll Theme Components	70	Technically sound and builds end-to-end; only Step 2.1's touch fails (missing mkdir -p), plus an aria-label drop, a duplicate Resources block, and two untaught bonus objectives.

🔬 Evidence

All numbers below are quoted from the sealed walk-evidence.json (execute mode, mock: false). Per-dimension scores are 1–5.

1. Docker Container Fundamentals — ⚠️ errored (no verdict)

• Engine result: verdict: fail, overall: 0.0, error: "claude exited 1 … Reached maximum number of turns (40)". meta: {} (no dimensions, no snippet tallies).
• The error trace shows the agent looping on real commands it did run — docker run --name web -d -p 8080:80 nginx:alpine, then repeated curl -s http://localhost:8080 and curl http://localhost:3000 — never getting a response, exhausting the 40-turn budget. This is a sandbox/engine limitation (published container port not reachable via curl in the runner), not evidence of a content defect. No pass/fail on any quest step can be claimed here.

2. Docker Compose Orchestration — ⚠️ errored (no verdict)

• Engine result: verdict: fail, overall: 0.0, error: "claude exited 1 … Reached maximum number of turns (40)"; meta: {}.
• Error trace shows permission_denials on curl -s http://localhost:8080/ (looped for i in 1 2 3; do curl …) plus curl -s -m 5 http://127.0.0.1:8080/. Same unreachable-port loop as quest 1. costUSD ≈ 0.98 was spent before the turn cap. No content verdict; reasoned-only.

3. Dockering Jekyll with Bootstrap 5 — ❌ fail (30)

• Dimensions: commands_work 1 · content_accuracy 1 · completeness 1 · clarity 2 · structure 2 · safety 4. weight_covered: 1.0.
• Snippets: available 8 (4 runnable) · recorded 9 · ran 6 · passed 1 · failed 5 · skipped 1 · reasoned 2 · executed.
• Real commands the engine ran in the sandbox:
• docker compose run jekyll jekyll new . → failed: docker-compose binary absent (exit 127); substituted docker compose, then Conflict: /srv/jekyll exists and is not empty. (exit 1) — Dockerfile/compose already in the dir.
• cd my-jekyll-site → failed: jekyll new . installed in place; that subdirectory is never created.
• index.md Bootstrap sample with {% raw %}{% include head.html %}{% endraw %} → failed: built in real Jekyll — with no front matter Jekyll copies the file verbatim, output contained literal {% include head.html %}, Bootstrap never included.
• docker compose up -d → failed: container crash-loops with Bundler::GemNotFound: Could not find base64-0.3.0, csv-3.3.5, json-2.20.0, logger-1.7.0, bigdecimal… (no bundle install).
• git init / add / commit → passed (root commit, 11 files). Registry git push → skipped (placeholder remote, unsafe).
• _includes/head.html block & Dockerfile → reasoned: valid syntax but BS4 attrs (data-toggle), needless jQuery, integrity="sha384-xxx" placeholder; Dockerfile is dead weight (no build: in compose).

4. Frontend Forests — ❌ fail (55)

• Dimensions: commands_work 2 · content_accuracy 3 · completeness 2 · clarity 3 · structure 3 · safety 5. weight_covered: 1.0.
• Snippets: available 8 (0 runnable) · recorded 17 · ran 9 · passed 5 · failed 4 · skipped 0 · reasoned 8 · executed.
• Real commands:
• gem install jekyll bundler → failed as written (targets /var/lib/gems/3.2.0, not writable); only succeeded with --user-install.
• jekyll new your-site-name → failed: auto bundle install hit Bundler::PermissionError on /var/lib/gems/3.2.0/cache/*.gem.
• cd your-site-name → passed; bundle config set --local path 'vendor/bundle' && bundle install (not in quest, needed to unblock) → passed (38 gems).
• Step 3 edit _includes/head.html → failed: file does not exist in a fresh site (find . -not -path './vendor*' confirms); lives only in vendor/bundle/…/minima-2.5.2/_includes/head.html.
• Step 4 edit _layouts/default.html → failed: same — only inside the minima gem.
• bundle exec jekyll build → passed (valid _site/, only unrelated minima Sass deprecations); bundle exec jekyll serve → passed.
• Filter table (date/slugify/where) → passed, verified live: {{ "My Title" | slugify }} → my-title. Ch.9 Liquid/layout material → reasoned accurate.

5. The Artisan's Forge — ⚠️ warn (70)

• Dimensions: commands_work 3 · content_accuracy 4 · completeness 3 · clarity 3 · structure 4 · safety 5. weight_covered: 1.0.
• Snippets: available 13 (3 runnable) · recorded 13 · ran 10 · passed 9 · failed 1 · skipped 1 · reasoned 2 · executed.
• Real commands:
• Step 2.1 touch _includes/components/nanobar.html → failed: cannot touch … No such file or directory — components/ never created (Step 3.1 correctly does mkdir -p _sass/components).
• After adding the dir: {% include components/nanobar.html %} → passed; nanobar: config in _config.yml → passed (rendered position=top, color=#0d6efd, height=3px, z_index=1050).
• Step 3.1 mkdir -p _sass/components && touch … → passed; SCSS @import + build → passed (compiled .nanobar rules present in _site/…/main.css).
• Step 3.3 nanobar markup → passed (style="--nanobar-height: 3px; --nanobar-color: #0d6efd; …") — but drops the aria-label that Step 2.2 had.
• Phase 4 scroll <script>, Phase 5 footer AFTER snippet, Phase 7 bundle exec jekyll build, and nanobar.enabled: false toggle → all passed (build exit 0; toggle → 0 nanobar occurrences).
• Phase 7 docker-compose exec … --config '_config_dev.yml' alt → skipped: needs a project-specific compose service + _config_dev.yml never introduced.

🐞 Issues Found

Every item below is backed by a real sandbox command (quests 3–5) or a directly quoted quest line (quests 1–2, reasoned-only). Issues on the two errored quests are labelled reasoned because the engine produced no content verdict for them.

High

• H1 · frontend-docker · Step 2/Step 5 (docker-compose up) — observed: container crash-loops with Bundler::GemNotFound because no gems are installed in the fresh image. Fix: bake bundle install into the build (a build: . Dockerfile with RUN bundle install) or add it to the compose command.
• H2 · frontend-docker · Step 2→3 (jekyll new . / cd my-jekyll-site) — observed: jekyll new . installs in place; cd my-jekyll-site then fails (no such dir), and jekyll new . itself hits Conflict: /srv/jekyll exists and is not empty. Fix: drop the cd, and document jekyll new . --force since Dockerfile/compose already occupy the dir.
• H3 · frontend-docker · Step 4 (Bootstrap include) — observed: built in real Jekyll, the {% raw %}{% include head.html %}{% endraw %} file with no front matter is copied verbatim; Bootstrap is never included. Fix: add ---\n--- front matter and remove the {% raw %} wrapper (or explain it is a doc-escaping artifact, not to be copied).
• H4 · frontend-docker · Step 4 (BS version accuracy) — observed: "Bootstrap 5" sample uses BS4 data-toggle/data-target, .jumbotron, .sr-only, and jQuery. Fix: use data-bs-toggle/data-bs-target, BS5 utilities instead of .jumbotron, .visually-hidden instead of .sr-only, drop jQuery.
• H5 · frontend · Steps 3 & 4 (edit theme files) — observed: _includes/head.html and _layouts/default.html do not exist in a fresh jekyll new site (find confirms; they live in the minima gem). This contradicts the quest's own Chapter 9 override explanation. Fix: instruct learners to copy the files out of the theme gem (or create them at those paths) first, and cross-reference Ch.9.
• H6 · frontend · Steps 1–2 (gem/bundle install) — observed: gem install and jekyll new's auto-bundle install fail with PermissionError on the system gemdir. Fix: document --user-install or bundle config set --local path 'vendor/bundle' as the supported path.
• H7 · frontend · Steps 3–4 (Bootstrap CDN snippet) — observed: quest describes where to add Bootstrap but never shows the actual <link>/<script> tags. Fix: include the pinned CDN snippet learners can paste.

Medium

• M1 · jekyll-component-refactoring · Step 2.1 — observed: touch _includes/components/nanobar.html fails (No such file or directory); Step 3.1 does the analogous mkdir -p correctly. Fix: change to mkdir -p _includes/components && touch _includes/components/nanobar.html.
• M2 · jekyll-component-refactoring · Step 2.2 vs 3.3 (aria-label) — observed: the built Step 3.3 markup silently drops aria-label="Reading progress" present in 2.2, shipping a progressbar with no accessible name. Fix: keep the aria-label in 3.3 or state the change explicitly.
• M3 · frontend-docker · docker-compose/Dockerfile relationship — reasoned: the authored Dockerfile is never used (compose pulls the image directly, no build:). Fix: add build: . or drop the Dockerfile step.
• M4 · frontend & frontend-docker · auto-seeded objectives — observed in source: both quests carry the placeholder "Understand the core concepts introduced in this quest…" block with the objectives auto-seeded during framework alignment note still visible to learners. Fix: replace with concrete, checkable outcomes.

Low

• L1 · frontend-docker · CDN & SRI — integrity="sha384-xxx" placeholders + outdated stackpath.bootstrapcdn.com. Fix: link jsDelivr with real current hashes.
• L2 · frontend-docker · tooling drift — obsolete version: '3' key and hyphenated docker-compose throughout; the sandbox's docker-compose binary was absent (exit 127). Fix: remove version: and use docker compose (v2).
• L3 · jekyll-component-refactoring · duplicate Resources block & untaught bonus objectives — observed: a second identical ## 📚 Resources block after the closing line; "step animation" and "CI validation test" objectives are named but never taught. Fix: dedupe; add samples or drop the objectives.
• L4 · frontend · Knowledge-Graph [[wiki-link]] — resolves only inside the IT-Journey/Obsidian vault; renders as broken text elsewhere. Note for learners.
• L5 · frontend-docker metadata — draft: true, empty prerequisites/rewards, Node.js listed as a tool but never used. Same draft: true on frontend. Fix: finish or clearly gate these drafts.

No blocking issue was found in quests 1 or 2 — but that is not a clean bill of health: those two were never scored (see §7). It means "unverified," not "passed."

🔗 Chain Continuity

Read as one Game-Developer → 0100 journey, the slice does not currently hold together as an authored path, even though its intended arc is sound:

• Two disjoint sub-arcs. Quests 1–2 (container-fundamentals → docker-compose-orchestration) form a clean, well-linked Docker arc: quest 2 declares required_quests: [container-fundamentals], its prose explicitly builds on "single containers you already forged," and it re-teaches the docker compose up on-ramp that quest 1 previews in its Chapter 4. Prereqs are satisfied within the pair. Quests 3–4 (frontend-docker, frontend) are a separate, older draft: true Jekyll+Bootstrap sub-arc with empty quest_dependencies and no link back to the Docker arc — a learner arriving from quest 2 gets no bridge into them.
• A prerequisite the path never provides. frontend Steps 1–2 assume a working host Ruby/Bundler toolchain and local theme files, while frontend-docker assumes Docker — yet neither the Docker arc nor these quests hand off the Jekyll environment cleanly. The engine had to invent bundle config set --local path to make frontend build at all; a real beginner following the text verbatim stalls at the very first gem install.
• Ordering smell. frontend-docker (score 30) and frontend (55) are the two weakest, most dated quests, yet they sit ahead of the polished side quest jekyll-component-refactoring (70) whose recommended_quests points back to frontend-docker. So the side quest sends learners back into the most broken quest in the slice for its assumed setup (a Docker Jekyll project + _config_dev.yml), which frontend-docker never actually leaves in a working state (H1–H3).
• Where a real learner gets stuck: (a) the Docker arc — likely fine, but unproven here; (b) frontend-docker Step 2, at the first docker-compose command (binary/ naming + gem crash); © frontend Step 1, at gem install permissions; (d) frontend/frontend-docker Steps 3–4, editing theme files that aren't there. The one quest that would leave a learner genuinely "ready for the next step" is quest 5 — ironically the side quest, not the main line.

Continuity verdict: the Docker pair is a coherent (if un-witnessed) mini-path; the frontend pair is broken-as-written and only loosely bolted on. The slice needs the two draft quests repaired or resequenced before it reads as one journey.

🧠 Reasoning & Method

• Mode & evidence. Execute mode, sealed by the workflow. I consumed walk-plan.json and walk-evidence.json / walk-evidence.md as-is — I did not re-run the engine (its child claude processes can't authenticate from my Bash tool) and did not edit any plan/evidence file. All pass/fail/skip/reasoned tallies and per-dimension scores in §4 are quoted from that sealed evidence; all quest-source quotes in §5 come from reading the five paths in plan order.
• What I ran vs. reasoned. I ran no quest commands myself (read-only session); the engine ran them in its disposable sandbox and I reported its witnessed results. For quests 3–5 that evidence is real and rich (per-dimension scores + executed snippet tallies). For quests 1–2 there is no content verdict — I reasoned about them statically from the source only, and I have labelled every statement about them reasoned.
• Coverage limits (honest).
• 2 of 5 quests errored (max_turns) and are un-scored — the two most important quests in the level (the Docker foundation) among them. The engine's own fail / 0.0 for these reflects an execution abort, not a content judgment, and I have not reported it as one.
• The abort cause was a sandbox networking limitation: published container ports were not reachable via curl localhost:8080, so the agent looped until the turn cap. This is an engine/sandbox artifact and may recur; the Docker quests likely need a lighter verification step (or a longer turn budget / --no-network shim) to ever score.
• This is a window (1 of 2) of an 8-quest level; quests 6–8 were out of scope and the level cannot be certified from this run alone.
• Browser-dependent behavior (scroll animation, live Bootstrap rendering) was not exercised — no browser in the sandbox — and is marked reasoned where relevant.
• Confidence. High for the three scored quests (real, reproducible command failures with quoted output). Low for quests 1–2 — structurally they look strong and well-linked, but I witnessed nothing, so I make no quality claim about them.
• Overall verdict = fail for the slice: average 51.7% across scored quests, two hard-fail draft quests blocking a beginner, and the foundation pair unverified. Not a path I could hand a real Game-Developer learner today without the H-series fixes and a resolution of the Docker evidence gap.

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Machine evidence header (verbatim from walk-evidence.md): 3 quests evaluated · ✅ 0 pass · ⚠️ 1 warn · ❌ 4 fail · avg 51.7% · ~$2.4917 (the "4 fail" count includes the two engine-errored quests, which carry no content verdict).