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2026 07 07 Digital Artist 0100

🎯 Session Summary

I walked the first window (5 of 8 quests) of the Digital Artist → Level 0100 "Frontend & Containers" (Adventurer ⚔️) slice as a learner, driving the sealed agentic execute engine evidence (walk-evidence.json) and reading every quest source in plan order. The slice splits cleanly into two personalities: a genuinely strong, dependency-linked Docker Mastery pair (container-fundamentals → docker-compose-orchestration) whose core teaching is verified end-to-end, and a weaker, unlinked Frontend Forests pair (frontend-docker, frontend) — both still draft: true, both carrying auto-seeded placeholder objectives, overlapping heavily in topic, and neither wired into the level's dependency graph. The side quest (jekyll-component-refactoring) is pedagogically sound with small fixable snags.

Headline verdict: ⚠️ warn. Average 61.0%, 4 warn + 1 fail (frontend-docker, 33%, which breaks at nearly every executable step). The Docker sub-chain is close to ship-ready with two chapter-3 fixes each; the Frontend Forests quests need real editorial work — concrete Bootstrap snippets, honest prerequisites, and de-duplication — before a beginner could follow them successfully.

🗺️ The Journey

# Verdict Quest Score One-line takeaway
1 ⚠️ warn Docker Container Fundamentals: Images to Registries 77 Core pull/build/run/cache workflow all verified; multi-stage example and "live reload" claim are the two soft spots.
2 ⚠️ warn Docker Compose Orchestration: Multi-Container Apps 62 Ch. 1–2 fully verified (incl. a real volume-persistence test); Ch. 3 capstone 500s (dropped Redis) and --scale fails on a static port.
3 ❌ fail Dockering Jekyll with Bootstrap 5 33 Breaks at almost every step: docker-compose missing, scaffold conflict, phantom cd, gems don't persist, BS4 markup. draft: true.
4 ⚠️ warn Frontend Forests: Building a Jekyll Site with Bootstrap 60 Commands work with workarounds, but Steps 1–8 assume non-existent local theme files and give no Bootstrap snippet; feels like two stitched docs. draft: true.
5 ⚠️ warn The Artisan's Forge: Refactoring Jekyll Theme Components 73 Refactoring pattern is sound and builds end-to-end; touch missing mkdir -p, an unimplemented config flag, and a duplicated Resources section.

🔬 Evidence

All outcomes below come from commands the execute engine actually ran in its disposable per-quest sandbox (Linux, Docker + Compose v2.38.2 available; no network/registry/GitHub push). Statically-judged steps are labeled reasoned.

1. container-fundamentals — 77% ⚠️ (snippets: ran 26, passed 24, failed 2, skipped 4)

Per-dimension: commands_work 4 · content_accuracy 3 · completeness 4 · clarity 4 · structure 4 · safety 5. - ✅ Ch.1 lifecycle docker pull nginx:alpine … run … stop … rm ran exactly as documented; image remained in docker images after rm — confirms the chapter's key claim. - ✅ Ch.2 docker build -t container-hello:1.0 . produced the exact expected log line; -e PORT=4000 override logged "Listening on port 4000" with no rebuild. - ✅ Ch.3 caching claim verified precisely: after editing app.js, WORKDIR / COPY package.json / RUN npm install were all CACHED, only COPY . . re-ran. - ❌ Ch.3 multi-stage Dockerfile applied to the Ch.2 project → npm error Missing script: "build". The snippet is a disconnected generic example, not runnable against the project the learner just built. - ❌ Ch.4 bind-mount "live reload": host edit to app.js was not reflected by the running node app.js (no file watcher) — contradicts "Edits … are seen immediately" and the checkpoint "showed up without rebuilding the image." - ⏭️ Registry login/tag/push/pull and OS-specific installers skipped (need real Docker Hub creds / other OSes) — syntax reasoned correct.

2. docker-compose-orchestration — 62% ⚠️ (snippets: ran 12, passed 10, failed 2, reasoned 2, skipped 2)

Per-dimension: commands_work 2 · content_accuracy 3 · completeness 3 · clarity 4 · structure 4 · safety 5. - ✅ Ch.1–2 compose files, Dockerfiles, and lifecycle commands all ran as described; named-volume persistence verified for real — data survived down/up and was deleted by down -v. - ✅ depends_on: condition: service_healthy correctly gated web until db reported Healthy (docker compose config resolved cleanly). - ❌ Ch.3 "Full Stack in Action" compose.yaml: reuses Ch.1's Redis-dependent app.py but omits the redis service → web 500s on every request. - ❌ Ch.3 docker compose up -d --scale web=3 → Bind for 0.0.0.0:8080 failed: port is already allocated because the service publishes a static host port. - 💭 macOS brew install docker-compose / Windows+WSL / apt install docker-compose-plugin — reasoned/skipped (platform-specific; package names verified correct).

3. frontend-docker — 33% ❌ (snippets: ran 5, passed 2, failed 3, reasoned 2, skipped 1)

Per-dimension: commands_work 1 · content_accuracy 1 · completeness 2 · clarity 2 · structure 2 · safety 4. - ❌ docker-compose run jekyll jekyll new . → command not found (exit 127): the standalone docker-compose binary is absent on modern Docker; and the scaffold conflicts because the dir already holds Dockerfile/compose.yml. - ❌ cd my-jekyll-site → No such file or directory: jekyll new . scaffolds in place; that subfolder is never created (source line 115). - ❌ docker-compose up (run as docker compose up) → container exits code 1 with Bundler::GemNotFound: Could not find base64-0.3.0, csv-3.… — gems installed during scaffold don't persist to the serve container. The quest's final proof-of-success step never serves the site. - 💭 reasoned fails: integrity="sha384-xxx" SRI placeholders (source line ~near CDN block) would block asset loading; navbar markup uses BS4 data-toggle/data-target, .jumbotron (line 170), .sr-only (line 155), and a jQuery include — all broken/removed in Bootstrap 5. - ⏭️ git … push to a remote skipped (needs real GitHub repo/creds).

4. frontend — 60% ⚠️ (snippets: ran 16, passed 12, failed 4, reasoned 2)

Per-dimension: commands_work 3 · content_accuracy 3 · completeness 2 · clarity 3 · structure 2 · safety 5. - ❌ bundle install failed on a permission error to the shared gem path; only succeeded after bundle config set --local path vendor/bundle — a stock-Linux learner would be stuck here with no guidance. - ❌ Step ¾: ls _includes and ls _layouts both No such file or directory on a fresh jekyll new (minima) site — the files the quest tells you to edit live inside the gem, not the project. Editing them as written does nothing. - ❌ Ch.9 Liquid block: {{ page.title }}, {% if %}, {% for %} rendered correctly, but the {# … #} comment syntax (source lines 158–160) renders as literal visible text — invalid Liquid; correct form is {% comment %}…{% endcomment %}. - 💭 _posts naming convention and "deploy to GitHub Pages/Netlify" (Step 8) — reasoned accurate but generic (no concrete commands).

5. jekyll-component-refactoring — 73% ⚠️ (snippets: ran 11, passed 9, failed 2, reasoned 2, skipped 1)

Per-dimension: commands_work 3 · content_accuracy 4 · completeness 3 · clarity 4 · structure 4 · safety 5. - ✅ The full refactor (config-driven nanobar include, scoped SCSS, full-width footer fix) builds and renders exactly as described — verified with a real jekyll build. - ❌ Step 2.1 touch _includes/components/nanobar.html → No such file or directory (exit 1): parent dir doesn't exist on a fresh theme; needs mkdir -p _includes/components first — exactly the situation of a learner extracting their first component. - ❌ Phase 7 bundle exec jekyll build → Could not locate Gemfile (exit 10) in a from-scratch sandbox; plain jekyll build succeeded. - 💭 The step_animation: false config flag is defined but never consumed anywhere; the "📚 Resources" section appears twice verbatim; the docker-compose build alternative assumes a service/_config_dev.yml the quest never creates.

🐞 Issues Found

High severity - high · frontend-docker · Step 2 scaffold + docker-compose CLI — docker-compose run jekyll jekyll new . fails (command not found, exit 127) and conflicts with the already-present Dockerfile/compose. Fix: scaffold into a genuinely empty dir first and replace all docker-compose with docker compose (Compose v2). - high · frontend-docker · docker-compose up (capstone) · gem persistence — container exits with Bundler::GemNotFound; the site never serves. Fix: add a named volume for the bundle path (e.g. bundle_cache:/usr/local/bundle) or run bundle install in the compose command: before jekyll serve. - high · frontend-docker · Step 4 · Bootstrap 5 markup — BS4 leftovers data-toggle/data-target (line 149), .jumbotron (line 170), .sr-only (line 155), jQuery include silently fail in BS5. Fix: data-bs-*, replace .jumbotron, .visually-hidden, drop jQuery. - high · frontend · Step ¾ · non-existent local theme files — a fresh jekyll new (minima) site has no local _includes/head.html / _layouts/default.html; the edits do nothing. Fix: tell the learner to copy them out of the theme gem (bundle show minima) or use a starter that ships them. - high · frontend · Step 3 · missing Bootstrap snippet — the quest's central skill has zero concrete code (only prose). Fix: include the actual pinned Bootstrap CDN <link>/<script>. - high · frontend · Ch.9 · invalid Liquid comment — {# … #} (lines 158–160) renders as literal text. Fix: use {% comment %}…{% endcomment %}. - high · container-fundamentals · Ch.3 · multi-stage build — npm run build → Missing script: "build" against the Ch.2 project. Fix: add a real build step to the sample app, or explicitly label the snippet as a generic example for a different project. - high · container-fundamentals · Ch.4 · "live reload" overstated — plain node app.js does not reload on host edits. Fix: use node --watch app.js/nodemon, or soften the claim + checkpoint. - high · docker-compose-orchestration · Ch.3 · dropped Redis — capstone compose.yaml reuses the Redis-dependent app.py but omits redis → web 500s. Fix: add the redis service back (a genuine 3-service stack) or ship a Postgres-only app.py for Ch.3. - high · docker-compose-orchestration · Ch.3 · --scale web=3 fails — static host port → "port is already allocated". Fix: remove/range the published port before demonstrating scaling, or add a caveat. - high · jekyll-component-refactoring · Step 2.1 · touch before mkdir — fails on a fresh theme. Fix: mkdir -p _includes/components && touch _includes/components/nanobar.html.

Medium severity - medium · frontend-docker · Step 3 · cd my-jekyll-site — directory never created. Fix: remove the step or scaffold with jekyll new my-jekyll-site. - medium · frontend-docker · Step 3 · SRI sha384-xxx placeholders — silently block asset loading. Fix: paste the real hashed snippet from Bootstrap docs. - medium · frontend · Step 1 · Ruby/bundle permission error — stock-Linux bundle install fails; needs bundle config set --local path vendor/bundle or a version manager. Fix: document the workaround. - medium · frontend-docker & frontend · placeholder objectives — both still carry the auto-seeded "Understand the core concepts…" objectives block. Fix: write quest-specific outcomes. - medium · jekyll-component-refactoring · unimplemented step_animation flag — defined but never consumed. Fix: implement or remove the flag and its bonus objective. - medium · jekyll-component-refactoring · Steps 2.2 vs 3.3 duplication / SCSS wiring — clarify that 3.3 replaces 2.2, and show how _sass/components/_nanobar.scss reaches the compiled stylesheet.

Low severity - low · container-fundamentals — note Docker Hub account is a registry prerequisite; give a concrete image-size ballpark for the "small image" check. - low · docker-compose-orchestration — state Ch.3 assumes Ch.1's app.py/Dockerfile/requirements are still present; add colima+Compose plugin note for macOS. - low · frontend-docker — master → main; mention GitHub Pages' gem allowlist / recommend actions/jekyll-build-pages. - low · frontend — merge or clearly split Steps 1–8 vs Ch.9; add Knowledge-Check answers + a prerequisites/rewards section. - low · jekyll-component-refactoring — remove the duplicated "📚 Resources" section; note Phase 7 build needs a Gemfile/bundle install.

🔗 Chain Continuity

The slice is two disconnected halves, only one of which is a real chain.

  • Docker Mastery pair (quests 1→2): genuinely linked and continuous. container-fundamentals (required_quests: [], unlocks: docker-compose-orchestration) → docker-compose-orchestration (required_quests: [container-fundamentals]). Both share quest_series: Docker Mastery, quest_line: The Adventurer's Forge, quest_arc: Containers of the Container Coast. Quest 1 teaches images/build/run/cache; quest 2 correctly assumes that and builds to multi-service orchestration. The one continuity snag: quest 2's Ch.3 silently assumes the learner still has Ch.1's app.py/Dockerfile in place — a fresh start there is confusing (flagged low).

  • Frontend Forests pair (quests 3, 4): unlinked, duplicative, and still drafts. Both frontend-docker and frontend are draft: true, both belong to a generic "Level 0100 Quest Line" (not Docker Mastery), both carry empty quest_dependencies and the identical auto-seeded placeholder objectives, and they overlap heavily (both "Frontend Forests / Jekyll + Bootstrap 5"). Nothing routes a learner from the Docker sub-chain into them, and nothing distinguishes which to take. This is the slice's biggest structural gap: two half-finished treatments of the same lesson, neither wired into the graph. A Digital Artist finishing quests 1–2 has no signposted next step within this window.

  • Side quest (quest 5): self-contained, softly bridged. jekyll-component-refactoring is a side_quest that recommends frontend-docker. It stands on its own well (builds end-to-end), but it inherits the frontend pair's weakness by recommending the slice's lowest-scoring, failing quest as a lead-in.

Prerequisite reality for a real beginner of this class: Both frontend quests assume a working local Ruby/Jekyll toolchain and existing theme layout files that a fresh jekyll new does not provide — the exact wall the execute engine hit. A Digital Artist who came through the Docker sub-chain expecting a container-first path is then told (in frontend) to gem install jekyll on the host, contradicting the container-no-Ruby-install promise of frontend-docker. The two Bootstrap quests need either a merge or a clear "containerized vs. host" split before the chain reads as one journey.

🧠 Reasoning & Method

  • Mode: execute (sealed). The quest-walkthrough workflow pre-ran the agentic execute engine deterministically and sealed walk-evidence.json / walk-evidence.md; per the skill's step 2, I consumed them as-is and did not re-run the engine (its child claude processes can't authenticate from my Bash tool). I did not edit walk-plan.json or walk-evidence.*.
  • What I ran vs. reasoned: Every passed/failed above is a command the engine actually executed in its disposable per-quest sandbox (evidenced in walk-evidence.json's commands/snippets). Items labeled reasoned/skipped were judged statically — OS-specific installers (macOS/Windows), registry pushes, and GitHub remote pushes were not run (no creds/other-OS/network), and I flagged them as such rather than claiming outcomes. My own contribution was reading all five quest sources in plan order and reasoning about the linked journey (chain continuity above); I cite source line numbers (e.g. frontend.md 158–160, frontend-docker.md 149/155/170) where I quote the quest itself.
  • Coverage / limits: This is window 1 of 2 — 5 of the level's 8 quests (windowed: true, offset 0). The remaining 3 quests of level 0100 are out of scope for this run and untested here. Sandbox was network-restricted (no registry login, no git push, outbound curl-to-localhost blocked — the engine worked around the last via docker exec … wget, which is a sandbox constraint, not a quest defect). Two quests (frontend-docker, frontend) are draft: true, so their low scores are work-in-progress, not shipped-quest failures.
  • Confidence: High for the Docker pair and the side quest (high runnable-snippet coverage: 26/11 and 11/3 recorded, real builds succeeded). Medium for frontend (0 fenced-runnable snippets by the engine's count; verified via the engine's reconstructed commands) and for the reasoned Bootstrap-markup findings in frontend-docker (static judgment against BS5 docs, not a browser render).

Machine evidence summary (verbatim from walk-evidence.md): 5 quests · ✅ 0 pass · ⚠️ 4 warn · ❌ 1 fail · avg 61.0% · ~$4.3938.