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2026 07 18 System Engineer 0101

🎯 Session Summary

I walked a 5-quest window (window 1 of 3; the full level holds 13 quests) of the System Engineer path at Level 0101 — CI/CD & DevOps (Adventurer tier), as a learner would, in the runner's disposable sandbox using the sealed execute-mode evidence the workflow pre-computed. Four quests scored (avg 67.2%, 0 pass / 3 warn / 2 fail); the fifth (the LaTeX CV quest) errored out in the engine (hit the 40-turn limit after its toolchain installs were denied network/sudo), so it carries no machine verdict and I could only reason statically about it.

The headline: the conceptual spine of this level is strong and accurate, but two of the five quests would actively strand a learner who follows them literally. CI/CD Fundamentals teaches a workflow whose npm ci step is verified to fail because the setup never creates a package-lock.json, and Docker Mastery is unfinished template scaffolding — 5 of 6 "runnable" blocks are empty comments and its headline objectives (Compose, security, cloud deploy) are never taught. I mark the slice fail: two fails plus a broken flagship first quest is enough to block a beginner, even though the CI→GitHub-Actions→Warden's-Gate thread is otherwise sound.

🗺️ The Journey

Walked in planner order (dependency-sorted window):

  1. ⚠️ CI/CD Fundamentals: The Build-Test-Deploy Pipeline — 76 · Accurate, well-structured concepts and working npm scripts, but a verified npm ci failure and a silent git commit -am no-op would trip a literal follower.
  2. ❌ Docker Containerization Mastery — 48 · One working hello-world container; everything else is empty placeholder scaffolding and the promised Compose/security/cloud content is absent.
  3. ⚠️ GitHub Actions Basics — 68 · Solid, well-verified concepts, but leaked Jekyll {% raw %}{% raw %}{% endraw %}/{% raw %}{% endraw %}{% endraw %} tags produce broken copy-paste YAML in the raw source, including in a required Mastery Indicator.
  4. ❓ Forging the La(zy)TeX CV — — (errored) · No engine verdict — the run hit the 40-turn cap after sudo/network installs were denied. Thematic outlier for a CI/CD level; static read only (see §7).
  5. ⚠️ The Warden's Gate: Kill Switches and Stage Gates — 77 · Technically accurate and well-structured; its one true hands-on block needs a pre-existing authenticated repo from an earlier campaign chapter, an inherent genre limit rather than a defect.

🔬 Evidence

All outcomes below come from commands the execute engine actually ran in the sandbox (tested), or are explicitly labelled reasoned where a step was judged from source without execution. Dimension scores are on the engine's 1–5 scale.

1. CI/CD Fundamentals — 76% ⚠️ (ran 5/5 runnable snippets, 2 ✗)

Dimensions: commands_work 3, content_accuracy 4, completeness 4, clarity 4, structure 4, safety 5.

  • ✅ Linux setup path passed — sudo apt … git nodejs npm, git --version, node --version, mkdir cicd-quest && cd cicd-quest, git init, npm init -y all ran clean; Cloud path (git/node --version) passed too. macOS/Windows paths skipped (wrong OS, correctly out of scope).
  • ✅ package.json scripts passed — npm run build prints compiling… then build ok (exit 0), npm test runs node --test (0 tests, exit 0), npm run lint exits 0. Maps cleanly to stages.
  • ❌ Chapter 2 CI workflow FAILED (tested). The workflow's run: npm ci fails because the quest's own setup only runs npm init -y — no lockfile is ever generated: "npm ci fails with npm error code EUSAGE … can only install with an existing package-lock.json." A learner completing the Intermediate Challenge ("a passing green run in the Actions tab") hits this on a fresh repo.
  • ❌ Chapter 3 fast-feedback snippet FAILED (tested). git commit -am "feat: add greeting" after the # … make a tiny change … placeholder silently commits nothing for the natural reading (a new file): "git commit -am on an untracked new file returns 'nothing added to commit but untracked files present' (exit 1)". No git add is shown.
  • 🟰 Pipeline diagram + feedback-loop list judged reasoned (accurate). git push -u origin … not run (needs a real remote) — correctly out of sandbox scope.

2. Docker Containerization Mastery — 48% ❌ (ran 3/6 runnable snippets)

Dimensions: commands_work 2, content_accuracy 3, completeness 1, clarity 2, structure 2, safety 5.

  • ✅ The one real snippet passed — the minimal Dockerfile (FROM alpine:3.20 + CMD ["echo", …]), docker build -t my-first-image . and docker run --rm my-first-image produce exactly the documented Hello from your first Docker container!.
  • ❌ 5 of 6 "runnable" blocks are empty placeholders (tested → skipped). Every platform block is a single comment — # macOS-specific commands and setup, # PowerShell and Windows-specific commands, # Linux distribution-specific commands, # Cloud platform commands and configurations, // Cross-platform web technologies — with bracketed prose like "[Detailed instructions including Homebrew installations …]". Nothing executable, nothing to learn.
  • ❌ completeness = 1. The objectives and completion checklist promise Docker Compose, security/optimization, and cloud deployment; none of it exists anywhere in the body. As shipped a learner gets one hello-world container backing a "Container Orchestration Mastery" reward.

3. GitHub Actions Basics — 68% ⚠️ (ran 8/4, 3 ✗)

Dimensions: commands_work 3, content_accuracy 3, completeness 4, clarity 3, structure 4, safety 5.

  • ✅ Setup + concept snippets passed — Windows (winget … ; New-Item … .github\workflows) and Linux (apt … gh git; mkdir -p .github/workflows) blocks ran; the "Hello Actions" workflow and the on: trigger block (push/paths, pull_request, cron, workflow_dispatch) parse correctly; the needs: build ordering block passed.
  • ❌ Leaked Jekyll raw-tags FAILED (tested) on the secrets and matrix blocks. The source literally contains ${% raw %}{% raw %}{% endraw %}{{ secrets.DEPLOY_TOKEN }}{% raw %}{% endraw %}{% endraw %}, ${% raw %}{% raw %}{% endraw %}{{ matrix.os }}{% raw %}{% endraw %}{% endraw %} and ${% raw %}{% raw %}{% endraw %}{{ matrix.node }}{% raw %}{% endraw %}{% endraw %} (lines 291, 333, 346), plus the same artifact in the Mastery Indicator (line 116) and Intermediate Challenge (line 375). Any raw-markdown consumer (GitHub file view, git clone, IDE preview) sees broken Actions syntax if copied as-is — the exact channel this review encountered it through. This is reproducible in the source, whatever the rendered site does.
  • ❌ Cloud block gh run list FAILED (tested). It reads as universally runnable but errors outside an authenticated Codespace attached to a repo with existing runs.

4. Forging the La(zy)TeX CV — no verdict ❓ (engine errored, 0 snippets scored)

  • The engine run exited 1 / "Reached maximum number of turns (40)" after its Bash attempts were denied (sudo -n true and a curl to conda.anaconda.org). No dimensions, no score, no machine evidence for this quest. Treat everything I say about it as reasoned static reading only (see §7).

5. The Warden's Gate — 77% ⚠️ (ran 2/1 runnable snippets)

Dimensions (per summary): technically accurate, well-structured; safety fine.

  • ✅ YAML passed (tested) — the first-turn.yml gate-job additions (read-only permissions: floor, gate job emitting go, turn job gated on needs.gate.outputs.go) and the two-line caller-permissions fix (contents: write + pull-requests: write) parse and the gate shell logic runs as documented.
  • 🟰 arm/disarm demo skipped — gh variable set/delete + gh workflow run … && gh run watch needs a live authenticated GitHub repo; correctly not exercised in an isolated sandbox.
  • 🟰 The startup_failure trap YAML + its error text + the mermaid diagram judged reasoned — the claims (caller permissions cap called-workflow jobs, startup_failure has no logs, gh run view --log-failed returns nothing) check out against current GitHub Actions semantics.

🐞 Issues Found

High - high · Docker Mastery · body (lines ~114-150 + objectives) · tested. 5 of 6 runnable blocks are empty comment stubs and the promised Docker Compose / security-optimization / cloud-deploy content is never authored (completeness = 1). Fix: author real chapters/snippets (a two-service docker-compose.yml, a multi-stage Dockerfile with non-root USER + HEALTHCHECK, a concrete docker push/cloud-run deploy) or remove those claims from objectives, checklist, and rewards so the quest doesn't over-promise. - high · Docker Mastery · platform path stubs (lines 114-150) · tested. Replace the placeholder blocks and bracketed "[Detailed instructions …]" text with actual per-OS commands, or drop the section — it currently ships as unfinished template output. - high · CI/CD Fundamentals · Chapter 2 workflow run: npm ci (line 297) · tested. Verified EUSAGE failure — the setup never generates/commits package-lock.json. Fix: either add npm install to the setup (and commit the lockfile) before the workflow is introduced, or change the workflow to npm install. - high · GitHub Actions Basics · secrets/matrix/Mastery-Indicator/Challenge (lines 116, 291, 333, 346, 375) · tested. Leaked {% raw %}{% raw %}{% endraw %}…{% raw %}{% endraw %}{% endraw %} tags render broken ${% raw %}{{ … }}{% endraw %} expressions in raw markdown. Fix: correct the escaping so raw consumers see clean ${% raw %}{{ secrets.DEPLOY_TOKEN }}{% endraw %} / ${% raw %}{{ matrix.os }}{% endraw %} / ${% raw %}{{ matrix.node }}{% endraw %}; especially important since the secrets form is a required Mastery Indicator.

Medium - medium · CI/CD Fundamentals · Chapter 3 git commit -am (lines 340-343) · tested. Silently no-ops for a new file. Fix: replace # … make a tiny change … with a concrete step that either creates and git adds a file, or edits an existing tracked one. - medium · Warden's Gate · Chapter 1 arm/disarm bash (lines 135-139) · reasoned. gh workflow run first-turn.yml && gh run watch — gh workflow run returns no run id, so gh run watch may pop an interactive picker. Fix: gh run watch $(gh run list --workflow=first-turn.yml --limit=1 --json databaseId --jq '.[0].databaseId'), or tell the learner to pick the top run. - medium · Docker Mastery · chapter depth · reasoned. One trivial echo-only Alpine container for a billed 60-90 min Medium quest. Fix: add at least one real worked build (copy app code, install deps, expose a port).

Low - low · GitHub Actions Basics · Cloud block gh run list (line 197) · tested. Clarify it only works in an authenticated Codespace attached to a repo with existing runs. - low · CI/CD + GitHub Actions · Knowledge Check sections · reasoned. No answer keys anywhere; add collapsible model answers so learners can self-verify. - low · Warden's Gate · Reproduce It PR #422 (line 204) · reasoned. External +24/−2 diff unverifiable offline; consider inlining the actual diff so it can't go stale. - low · Docker & LaTeX CV · Knowledge-Graph level-hub label · reasoned. Both wiki-link [[Level 0101 - Advanced Docker & DevOps]], but the level's actual theme (and the other three quests' hubs) is CI/CD & DevOps. Align the label for consistent navigation.

No issue here is fabricated — each cites a run command result or an exact quoted source line. The LaTeX CV quest is deliberately absent from the high/medium bug list because I have no execution evidence for it.

🔗 Chain Continuity

Reading the five in plan order as one journey for a System Engineer at this level:

  • The mainline CI/CD thread is genuinely well-linked. CI/CD Fundamentals → GitHub Actions Basics is a real, declared prerequisite chain (github-actions-basics frontmatter lists required_quests: /quests/0101/cicd-fundamentals/). Fundamentals leaves the learner with exactly the mental model (build-test-deploy, triggers, secrets) that Actions Basics builds on — good continuity, and the ${% raw %}{{ secrets.NAME }}{% endraw %} concept even recurs across both quests reinforcing it.
  • …but the same lockfile assumption threads through both quests. Fundamentals never creates a package-lock.json, yet both it (Ch2) and Actions Basics (npm ci in the needs: and matrix blocks) assume one exists. A learner carrying Fundamentals' scaffolded repo into Actions Basics hits the identical npm ci wall twice — a real cross-quest prerequisite gap, not just a per-quest bug.
  • Docker Mastery does not belong in this learning line as written. It shares the level code but has no dependency edge to the CI/CD thread, its stated prerequisites point at Command-Line/Git quests, and its body is unfinished. A beginner who reaches it after Fundamentals gets no CI/CD continuity and one working container — it breaks the journey's momentum rather than advancing it.
  • The LaTeX CV quest is a thematic outlier. It's a "Professional Identity Path" CV-forging quest sitting inside a CI/CD & DevOps level. For a System Engineer sweeping this level it reads as an unrelated detour; nothing before it sets it up and nothing after it depends on it. Its own Chapter 1 sensibly warns "Don't have cv.tex yet? Create it first from Chapter 2, then return here," so its internal ordering is fine — it's the level placement that breaks continuity.
  • Warden's Gate assumes state this window never provides. It recommends /quests/0000/ouroboros-loop-01-the-first-turn/ and requires "your potion-book repo from Chapter I" with an authenticated gh. None of the four earlier quests in this window builds that repo, so a learner arriving here cold is missing the prerequisite artifact — the engine's inability to run its one hands-on block is a direct symptom. It's a strong quest, but it presumes a prior campaign chapter outside the slice.

Net: the slice does not hold together as a single System-Engineer learning path. Two coherent sub-threads exist (the CI/CD → GitHub-Actions mainline, and the Ouroboros campaign chapter) interleaved with two off-thread quests (Docker stub, LaTeX CV), and the mainline itself carries a shared npm ci prerequisite gap. A learner following the window top-to-bottom would experience it as four unrelated starts, not one arc.

🧠 Reasoning & Method

  • Mode: execute, in the workflow's disposable sandbox. I consumed the sealed walk-evidence.json/.md as-is — I did not run, regenerate, or edit the engine (its child claude processes can't authenticate from my Bash tool), and I did not touch walk-plan.json. Every passed/failed above is an engine-run command; everything labelled reasoned I judged from the quest source, which I read in full in plan order.
  • What I ran vs. reasoned: the engine executed real snippets for 4 of 5 quests (setup commands, npm scripts, Docker build/run, YAML parsing, gate shell logic). I reasoned about: all placeholder/empty blocks, network/remote-dependent steps (git push, gh run watch, gh run list), the caller-permissions/ startup_failure YAML, and the level-hub label inconsistency.
  • Coverage gaps I'm being honest about:
  • LaTeX CV quest has ZERO execution evidence — the engine hit the 40-turn cap after sudo/network installs (texlive-full, conda) were denied. I did not fabricate a score for it; its journey/§4 lines are static reading only. Its self-contained Chapter 2 cv.tex (base packages + locally-defined \resumeSubheading/\resumeItem) looks like it would compile with a stock TeX Live, but that is unverified.
  • Snippet coverage per the sealed table: CI/CD 5/5 (2✗), Docker 3/6, GitHub Actions 8/4 (3✗), LaTeX —, Warden's Gate 2/1.
  • This is window 1 of 3 — I walked 5 of the level's 13 quests. I did not expand beyond the planned window; the remaining 8 quests are for later runs and the ledger accumulates coverage across them.
  • No destructive commands, no host-repo mutation, no network beyond what a quest's own safe setup needed.
  • Confidence: High on the four scored verdicts and their cited command outcomes; the two high-severity content bugs (npm ci lockfile, Docker scaffolding) are directly reproduced. Low/none on the LaTeX quest — flagged as unwalked. Overall slice verdict fail reflects two failing quests plus a blocking first-quest bug in an otherwise conceptually sound level.
Sealed machine evidence (quoted from walk-evidence.md) > **4** quests evaluated · ✅ 0 pass · ⚠️ 3 warn · ❌ 2 fail · avg **67.2%** · ~$2.284 > > - ⚠️ 76 — CI/CD Fundamentals — 5/5 (2✗) > - ❌ 48 — Docker Containerization Mastery — 3/6 > - ⚠️ 68 — GitHub Actions Basics — 8/4 (3✗) > - ❌ — — Forging the La(zy)TeX CV — engine exited 1: "Reached maximum number of turns (40)" > - ⚠️ 77 — The Warden's Gate — 2/1