2026 08 27 Game Developer 0001¶

🎯 Session Summary¶

I walked window 2 of 6 of the Game Developer → Level 0001 "Web Fundamentals" (Apprentice 🌱) path — 5 of the level's 26 quests, in the planner's dependency-sorted order — backed by the workflow's sealed execute-mode engine evidence (real commands run in a disposable sandbox, not model assertions): GitHub Pages Basics, Jekyll Fundamentals, YAML Configuration, Git Workflow Mastery, and Liquid Templating.

Headline verdict: WARN, avg 81.8% (4 pass / 1 warn / 0 fail). Every quest's core hands-on material was actually run against real tooling (Jekyll 4.4.1, Liquid, yamllint, a live gh/git repo simulation) and worked largely as documented — Git Workflow Mastery (92) is the standout, with the full branch/merge/rebase/conflict lifecycle verified live. But I downgrade the session to WARN for two reasons a maintainer should act on: (1) Liquid Templating scored 71 with two confirmed, verbatim-reproducible broken code snippets (a genuine Liquid syntax error and a mis-claimed output), and (2) my own read of the five quests' quest_dependencies frontmatter against _data/quests/network.yml found that this exact five-quest window is one single dependency cycle — the planner could not topologically sort it and fell back to difficulty+alphabetical tie-breaking, which is why the walk order opens with GitHub Pages Basics even though that quest's own frontmatter declares jekyll-fundamentals as a hard required_quests prerequisite. That's a structural defect in the quest graph, not a quirk of this run.

🗺️ The Journey¶

Walked in planner order (window index 1 of 6; stats.total_quests = 26):

#	Verdict	Quest	Type	Score	One-line takeaway
1	✅	GitHub Pages Basics: Host Your Jekyll Site for Free	main	83	url/baseurl and `relative_url` verified live; the macOS/Windows/Linux paths never rename the default branch to `main` before the Pages-enable step assumes it.
2	✅	Jekyll Fundamentals: Build Static Sites with Ruby	main	83	Scaffold→serve→collections→build loop worked end-to-end; Chapter 4's `docker-compose up -d` fails because no compose file is ever shown.
3	✅	YAML Configuration: Site Settings Mastery	main	80	Every YAML/yamllint claim verified; the Chapter 3 Liquid sample is wrapped in `{% raw %}` and is a no-op if copied as shown.
4	✅	Git Workflow Mastery: Branches, Merging & Team Collaboration	main	92	Full branch/PR/merge/rebase/conflict cycle verified live; Chapter 2's merge diagram doesn't match the quest's own fast-forwarding walkthrough sequence.
5	⚠️	Liquid Templating: Dynamic Content for Jekyll Sites	main	71	Most Liquid constructs verified correct, but the Ch.2 "New badge" `elsif` and the Ch.4 forloop/whitespace example are both confirmed broken as written.

Avg 81.8% · 4 pass / 1 warn · engine cost ≈ $4.32 · engine wall time ≈ 1,062s across 108 turns.

🔬 Evidence¶

All outcomes below are commands the execute engine actually ran in its disposable sandbox, quoted/trimmed from the sealed walk-evidence.json.

1. GitHub Pages Basics — ✅ 83 (13 available, 7 runnable ran / 7 passed / 4 skipped / 4 reasoned)¶

Dimensions: commands_work 4, content_accuracy 4, completeness 4, clarity 4, structure 5, safety 5.
git init && git add . && git commit -m "Initial site" ran cleanly against a real jekyll new my-castle scaffold; _config.yml url/baseurl and the relative_url Liquid filter were built with real Jekyll 4.4.1 and produced exactly /my-castle/assets/css/style.css (vs. a hard-coded path that would 404).
bundle exec jekyll serve --baseurl "/my-castle" and JEKYLL_ENV=production bundle exec jekyll build (paired with {% if jekyll.environment == "production" %}) both behaved exactly as documented.
Real gap (tested): git init on this system defaults to branch master (git prints an explicit hint); only the Cloud Realms path runs git branch -M main before pushing. The macOS/Windows/Linux paths go straight from git init to gh repo create ... --push and then to a "Enable Pages" step and a gh api ... -f "source[branch]=main" example that both hardcode main — a learner on those paths can be left with a master default branch and a Pages-enable step that doesn't match reality.
gh api -X POST repos/:owner/my-castle/pages -f "source[branch]=main" ... parsed correctly and reached GitHub's real auth layer (failed only for lack of a token) — confirms the command's syntax, not its full flow.
Missing: no mention that GitHub Pages' classic "Deploy from a branch" build runs an older, pinned github-pages gem version with a fixed plugin whitelist — a real "works locally, fails on Pages" gotcha the quest's own "diagnose a broken build" framing implies it should cover.

2. Jekyll Fundamentals — ✅ 83 (16 available, 9 runnable ran / 8 passed / 1 failed / 2 skipped / 5 reasoned)¶

Dimensions: commands_work 4, content_accuracy 4, completeness 4, clarity 4, structure 5, safety 5.
jekyll new my-castle && bundle exec jekyll serve produced the exact quoted output ("Server address: http://127.0.0.1:4000/"); adding collections: recipes: to _config.yml plus _recipes/bread.md produced _site/recipes/bread/index.html exactly as promised.
bundle exec jekyll build --verbose, --drafts, --livereload, and the multi-config merge --config _config.yml,_config_dev.yml (later file wins) all ran cleanly and matched the documented behavior.
Real bug (tested, failed): docker-compose up -d (line 462, Chapter 4 "One Repo, Two Configs") fails outright — docker-compose reported no configuration file provided: not found. No docker-compose.yml/Dockerfile is ever created or shown anywhere in the quest, so this exact command cannot work for anyone following it linearly.
Minor: .gitignore step (echo "_site/" >> .gitignore ...) duplicates entries jekyll new already adds by default — harmless but a no-op as presented.

3. YAML Configuration — ✅ 80 (16 available, 11 runnable ran / 10 passed / 1 failed / 4 skipped / 1 reasoned)¶

Dimensions: commands_work 3, content_accuracy 4, completeness 5, clarity 4, structure 5, safety 5.
All 8 YAML snippets parsed exactly as described with PyYAML; yamllint _config.yml _data/team.yml exited 0. Every "pitfall" claim was independently reproduced: yes/on → boolean True, 1.20 → float 1.2 (trailing zero lost), an unquoted colon in a string → real parse error, 01234 unquoted → octal 668, | vs > → literal-newline vs folded-string.
Real bug (tested, failed): the Chapter 3 Liquid sample (lines 360–364) wraps every tag in {% raw %}...{% endraw %} — e.g. {% raw %}{% for member in site.data.team %}{% endraw %}. Rendered with the Ruby liquid gem exactly as printed, it outputs the tags as inert literal text, not an iterating loop; only the unwrapped version actually prints "Ada Lovelace - Architect." A learner copying the shown block into a real template gets a silent no-op.
bundle exec jekyll serve --config ... / JEKYLL_ENV=production build were correctly skipped (no Jekyll site present in this quest's own sandbox, matching its stated "pre-existing Jekyll site" prerequisite) — an environment limitation, not a quest defect.

4. Git Workflow Mastery — ✅ 92 (12 available, 8 runnable ran / 8 passed / 5 skipped / 2 reasoned)¶

Dimensions: commands_work 5, content_accuracy 4, completeness 4, clarity 5, structure 5, safety 5.
Ran the full lifecycle verbatim against a local bare-repo "origin": git switch main/pull/switch -c/add/commit/push -u, git status/log --oneline --graph --all/diff, a real merge conflict reproducing the exact <<<<<<< HEAD / ======= / >>>>>>> markers, git rebase --continue across two sequential conflicts, and git merge --abort/git rebase --abort restoring a clean tree. gh pr create/gh pr merge --squash --delete-branch flags were verified against the installed gh 2.98.0's --help (not executed live — no auth/network).
Real gap (tested): Chapter 2's merge-commit diagram (main: A---B---------M) only materializes when main has diverged since branching. Following the quest's own worked sequence (branch off current main, one commit, merge straight back with no intervening main commits) actually fast-forwards — no merge commit — a real mismatch between the diagram and what the quest's own walkthrough produces (confirmed by running both the fast-forward case and a genuinely-diverged case).
git restore/git revert are a stated secondary objective but only appear in a prose warning (line ~268), with no worked code example, unlike every other objective.

5. Liquid Templating — ⚠️ 71 (15 available, 15 ran / 13 passed / 2 failed / 1 skipped / 1 reasoned)¶

Dimensions: commands_work 3, content_accuracy 3, completeness 4, clarity 4, structure 4, safety 5.
Verified against a real Jekyll 4.4.1 / Liquid 4.0.4 site: objects/filters ({{ page.title }}, upcase, capitalize+replace, date, strip_html+truncatewords), for ... limit:/forloop.index, sort+reversed, parameterized include, layouts with {{ content }}, comment/raw blocks, and whitespace-dash control ({%- -%}) all rendered exactly as documented.
Confirmed bug #1 (tested, failed): Chapter 2's "New" badge condition, {% elsif post.date > site.time | date: "%s" | minus: 604800 %} (line 276), throws a real error under jekyll build/jekyll serve: Liquid syntax error (line 5): Expected end_of_string but found pipe — filters cannot be chained after a comparison operator inside an elsif. The badge silently never renders.
Confirmed bug #2 (tested, failed): Chapter 4's forloop/whitespace example (line 408, {% unless forloop.first %}{% endunless %}{{ tag }}) does not produce the claimed single-line "liquid, jekyll, templating (no leading comma)." As printed, none of the for/unless/endfor tags use whitespace-control dashes, and the real rendered output (verified with cat -A) has stray newlines and leading spaces between tags — ironic since this is the exact chapter teaching whitespace control.
case/when and contains are mentioned only in prose with no runnable example, unlike every other construct in the quest.

🐞 Issues Found¶

Every item cites what was actually run/observed (tested) or read directly from source/frontmatter/network data (reasoned); severities as the engine scored them (structural/network finding severity is my own judgment).

HIGH · Liquid Templating · Chapter 2, line 276 ("New" badge elsif) · tested — {% elsif post.date > site.time | date: "%s" | minus: 604800 %} is a genuine Liquid syntax error in real Jekyll (Expected end_of_string but found pipe), reproduced via jekyll build. Fix: precompute the cutoff with assign first, e.g. {% assign week_ago = site.time | date: "%s" | minus: 604800 %}{% assign post_ts = post.date | date: "%s" %}{% if post_ts > week_ago %}...{% endif %} (both sides still need coercing to the same numeric type).
HIGH · Liquid Templating · Chapter 4, line 408 (forloop/whitespace example) · tested — Claimed output "liquid, jekyll, templating (no leading comma)" is not what the snippet as written produces (verified with cat -A: stray newlines/leading spaces). Fix: add whitespace-control dashes ({%- for -%}, {%- unless forloop.first -%}, {%- endunless -%}, {%- endfor -%}), or correct the claimed output to match reality.
HIGH · Quest-graph structure (GitHub Pages Basics / Jekyll Fundamentals / Git Workflow Mastery) · reasoned (my own cross-read of quest_dependencies frontmatter + _data/quests/network.yml) — This entire five-quest window is a single dependency cycle: Jekyll Fundamentals --unlocks--> GitHub Pages Basics --unlocks--> Git Workflow Mastery --unlocks--> Jekyll Fundamentals (confirmed directly in _data/quests/network.yml's edges list). Because a true topological order doesn't exist, walkthrough_plan.py's Kahn/SCC condensation collapses these three (plus YAML Configuration and Liquid Templating, which both also unlock back into the same loop via Jekyll Fundamentals) into one strongly-connected component and falls back to difficulty-then-alphabetical tie-breaking — which is exactly why this session was told to play GitHub Pages Basics first, even though its own quest_dependencies.required_quests (and its prerequisites.knowledge_requirements: "Completion of Jekyll Fundamentals") name Jekyll Fundamentals as a hard prerequisite. The root cause looks like a single bad edge: Git Workflow Mastery's frontmatter lists unlocks_quests: - /quests/0001/jekyll-fundamentals/, but Jekyll Fundamentals itself declares required_quests: [] (it's the level's entry point) and does not list Git Workflow Mastery anywhere — the two files disagree about who unlocks whom. Fix: remove the spurious jekyll-fundamentals entry from Git Workflow Mastery's unlocks_quests (or, if intentional, add the missing reciprocal required_quests/recommended_quests entry on Jekyll Fundamentals so the DAG closes correctly) and re-run make quest-build-network. Note: scripts/quest/validate-quest-network.py's cycle check only inspects the required edge subgraph (which has no cycle here), so make quest-audit would not currently catch this — the cycle only shows up in the combined required+recommended+unlocks graph the walkthrough planner uses.
MEDIUM · GitHub Pages Basics · macOS/Windows/Linux platform blocks · tested — git init defaults to branch master on this system; only the Cloud Realms path runs git branch -M main. The following "Enable Pages" instructions and the gh api ... -f "source[branch]=main" example hardcode main. Fix: add git branch -M main (or an explicit default-branch check) to the macOS/Windows/Linux blocks too.
MEDIUM · Jekyll Fundamentals · Chapter 4, line 462 (docker-compose up -d) · tested, failed — Fails with "no configuration file provided: not found"; no docker-compose.yml/Dockerfile is ever shown in the quest. Fix: either supply the actual compose file (matching the stated localhost:4002 port) or replace the snippet with the already-working docker run ... jekyll/jekyll:4 command shown in the Cloud Realms section.
MEDIUM · YAML Configuration · Chapter 3, lines 360–364 (Liquid data-loop sample) · tested, failed — Wrapped in {% raw %} tags that make it a literal no-op if copied as shown; only the unwrapped version actually loops and prints the data. Fix: remove the {% raw %} wrapping from the code block a learner is meant to copy (keep it only if it's illustrating the raw tag itself, and label it as such).
MEDIUM · Git Workflow Mastery · Chapter 2, merge-commit diagram · tested — The diagram (main: A---B---------M) doesn't match what the quest's own worked sequence produces (a fast-forward, no merge commit) unless main has diverged first. Fix: either add an intervening main commit to the worked example before merging, or note that the diagram assumes divergence.
LOW · Git Workflow Mastery · secondary objective (git restore/git revert) · reasoned — Named as a secondary objective and mentioned in a warning callout, but has no worked code example unlike every other objective. Fix: add a short git restore <file> / git revert <commit> snippet.
LOW · GitHub Pages Basics · "GitHub Actions Build" secondary objective · reasoned — Mentioned only via a table link/knowledge-check bullet, no sample workflow YAML shown despite being a named secondary objective. Fix: link or embed a minimal jekyll.yml GitHub Actions starter workflow.
LOW · Liquid Templating · Chapter 2 (case/when, contains) · reasoned — Mentioned only in prose, unlike every other construct in the quest, which gets a runnable example. Fix: add a short code sample.

No safety issues anywhere in the slice — every quest scored safety 5/5; the only privilege-adjacent commands (sudo apt install gh, gh repo create --push) are standard, expected, and clearly the quest's stated purpose (not unwarned side effects).

🔗 Chain Continuity¶

Read in plan order (GitHub Pages Basics → Jekyll Fundamentals → YAML Configuration → Git Workflow Mastery → Liquid Templating), carrying forward what a learner would actually have after each quest:

Topically, this is a coherent, well-designed arc. All five quests share quest_series: "Static Site Mastery" / quest_line: "The Web Fundamentals Codex" / quest_arc: "Forging Your First Website", and the skills genuinely build on each other: Jekyll's directory/build model → YAML config/data → Liquid templating → Git branching discipline → publishing to GitHub Pages is a sensible real-world sequence for a beginner building and shipping their first site.
But the walk order this session was given is not that sequence, and it should have been. As detailed in Issues, the five quests' quest_dependencies frontmatter forms a genuine cycle when read together (Jekyll Fundamentals ⇄ GitHub Pages Basics ⇄ Git Workflow Mastery, with YAML Configuration and Liquid Templating also looping back through Jekyll Fundamentals's unlocks_quests). Every one of GitHub Pages Basics, YAML Configuration, and Liquid Templating correctly declares jekyll-fundamentals as a required prerequisite in its own frontmatter — the intended chain is unambiguous and consistent on that point. The only quest that breaks it is Git Workflow Mastery, whose unlocks_quests claims it unlocks Jekyll Fundamentals — a quest that is supposed to be the level's zero-prerequisite entry point (required_quests: []). That single inverted edge is what defeats the planner's topological sort and produced this run's actual order (GitHub Pages Basics first), which — if a real learner followed it literally, in order, with no other context — would have them attempt a quest whose own stated prerequisite ("Completion of Jekyll Fundamentals") hasn't been met yet.
In practice the damage is contained, not catastrophic. GitHub Pages Basics' body doesn't actually require Jekyll Fundamentals' specific artifacts beyond "a working Jekyll site already exists" (its own Chapter 1 starts from cd my-castle, assuming that site is already scaffolded) — so a learner who happened to have already built a Jekyll site some other way wouldn't be blocked outright. But that's exactly the ambiguity a correct dependency graph is supposed to eliminate, and it's the reason this walkthrough — simulating a first-time learner with only this window's stated order to go on — surfaced the problem at all.
Git Workflow Mastery's own prerequisite chain is also worth a second look. It correctly requires /quests/0000/git-basics/ (a different, foundational level) and recommends GitHub Pages Basics, which is reasonable — its own content (branches, PRs, conflict resolution) doesn't depend on Jekyll knowledge at all, so its actual body content sits outside this quest's Jekyll-focused arc even though it shares level: "0001" and the quest_series/quest_line tags with the other four. It's the odd one out topically as well as graph-wise.
Terminology and environment carry over cleanly. None of the later quests silently assume something the earlier ones in this window didn't teach (aside from the cycle above) — _config.yml, _data/, Liquid delimiters, and Git branch/PR vocabulary are each introduced before they're relied upon in the intended (non-cyclic) reading order.

Net: the five quests are a genuinely well-conceived learning arc undermined by one bad frontmatter edge (Git Workflow Mastery's spurious unlocks_quests: jekyll-fundamentals) that turns the whole window into an unsortable cycle for any tool — like this walkthrough's planner — that tries to derive a strict play order from the declared dependency graph.

🧠 Reasoning & Method¶

Mode: execute (sealed). The quest-walkthrough.yml workflow pre-computed and sealed walk-evidence.json / walk-evidence.md via the deterministic agentic execute engine before this session started; I consumed them as-is and made zero edits to walk-plan.json, walk-evidence.*, or any quest content (the engine's child claude processes can't authenticate from my Bash tool, so I could not and did not re-run it). This was not a --mock run — walk-evidence.json's meta blocks show real cost_usd/turns/duration_s/session_id per quest.
What I ran vs. reasoned: All passed/failed/skipped outcomes cited above are from commands the execute engine actually ran in its disposable sandbox (real Jekyll 4.4.1/Bundler builds, the Ruby liquid gem, yamllint, a local bare-repo git simulation, gh --help flag checks). I performed one additional read-only verification of my own: cross-reading all five quests' quest_dependencies frontmatter against _data/quests/network.yml's edges list and re-deriving the planner's succ/SCC logic from scripts/quest/walkthrough_plan.py by hand — this is reasoned, not executed, and is the basis for the graph-cycle finding in Issues/Chain Continuity. Everything else in Chain Continuity is static reasoning over the five quest source files I read in full, in plan order.
Coverage / limits: This is window 2 of 6 — only 5 of the level's 26 quests were walked in this run; I make no claim about the other 21 (the perfection ledger accumulates coverage of the remaining windows across separate runs). Per-quest snippet coverage is reported in §Evidence (e.g. Liquid Templating ran 15/15 recorded snippets; GitHub Pages Basics ran 7/7 runnable but skipped 4 unsafe/interactive ones like brew install/gh auth login). Environment limits noted throughout: macOS (brew), Windows (PowerShell/winget), and real network-mutating steps (gh repo create --push, DNS record creation, docker-compose image pulls) could not be exercised in this headless Linux sandbox — these were correctly labeled reasoned/skipped by the engine, not scored as quest defects.
Confidence: High on all five per-quest scores (each backed by real command execution, not inference) and on the two Liquid bugs (both independently reproduced with real error output/cat -A byte inspection). High on the dependency-cycle finding too — it's a direct, mechanical read of _data/quests/network.yml's committed edges plus the planner's own documented algorithm, not a subjective judgment call.

Machine evidence excerpt (verbatim from walk-evidence.md):

5 quests evaluated · ✅ 4 pass · ⚠️ 1 warn · ❌ 0 fail · avg 81.8% · ~$4.3236

Score Quest Level Snippets run Summary

✅ 83 GitHub Pages Basics: Host Your Jekyll Site for Free 0001 7/7 The quest's core technical claims all held up under actual execution...

✅ 83 Jekyll Fundamentals: Build Static Sites with Ruby 0001 9/10 (1✗) The quest's core Jekyll workflow... was executed end-to-end in the sandbox and worked exactly as described...

✅ 80 YAML Configuration: Site Settings Mastery 0001 11/7 (1✗) The quest's YAML/Jekyll content is technically solid...

✅ 92 Git Workflow Mastery: Branches, Merging & Team Collaboration 0001 8/10 Git Workflow Mastery is a well-structured, technically sound quest...

⚠️ 71 Liquid Templating: Dynamic Content for Jekyll Sites 0001 15/4 (2✗) Most of the quest's Liquid content is accurate and was verified to work exactly as documented...

	Score	Quest	Level	Snippets run	Summary
✅	83	GitHub Pages Basics: Host Your Jekyll Site for Free	0001	7/7	The quest's core technical claims all held up under actual execution...
✅	83	Jekyll Fundamentals: Build Static Sites with Ruby	0001	9/10 (1✗)	The quest's core Jekyll workflow... was executed end-to-end in the sandbox and worked exactly as described...
✅	80	YAML Configuration: Site Settings Mastery	0001	11/7 (1✗)	The quest's YAML/Jekyll content is technically solid...
✅	92	Git Workflow Mastery: Branches, Merging & Team Collaboration	0001	8/10	Git Workflow Mastery is a well-structured, technically sound quest...
⚠️	71	Liquid Templating: Dynamic Content for Jekyll Sites	0001	15/4 (2✗)	Most of the quest's Liquid content is accurate and was verified to work exactly as documented...