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Architecture & System Intent Documentation Request #4

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opened 2026-06-08 09:03:36 +00:00 by ryangr0 · 0 comments
ryangr0 commented 2026-06-08 09:03:36 +00:00
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Originally created by @Ryangr0 on GitHub.

Architecture & System Intent Documentation Request

Goal: Commission a single authoritative architecture & intent document (≤2000 words) that explains WHAT exists, WHY it exists, and HOW it coheres—grounded in this repo plus authoritative external sources for referenced technologies.

1. Deliverable

Produce docs/techdocs/docs/architecture/architecture-intent.md (or update if exists) containing:

  1. Purpose (≤40 words)
  2. Executive Snapshot (bullet high‑level: systems, infra, runtime context)
  3. Conceptual Architecture (narrative + optional mermaid)
  4. Domain & Problem Framing (what user / business problems are solved)
  5. System Components & Responsibilities (each: intent, key tech, rationale)
  6. External Dependencies & Rationale (why chosen vs common alternatives)
  7. Cross‑Cutting Concerns
    • Configuration strategy
    • Observability (what signals mean what)
    • Security posture (surface, isolation, secrets approach)
  8. Operational Model
    • Deployment flow & environments
    • Scaling & resilience levers
  9. Evolution & Constraints
    • Explicit trade‑offs
    • Known debt / intentional simplifications
  10. Glossary (only terms actually used)
  11. Reference Footnotes (indexed, authoritative sources only)

Hard limits:

  • Total ≤2000 words (exclude footnotes list, code fences, diagrams)
  • Each component description ≤70 words
  • No filler (“robust”, “best-of-breed”)—state facts & intent

2. Sources to Consult

Priority order (cite with footnotes):

  1. Repository contents (code, Helm charts, manifests, ADRs if any)
  2. Commit messages referencing foundational setup
  3. Official documentation for named tools (e.g., cert-manager, Traefik, GitHub Actions runner controller, Grafana stack, Prometheus, Loki, Mimir, Tempo)
  4. CNCF / vendor architecture references (only if directly relevant)
  5. Industry-standard definitions (e.g., “ingress controller”, “observability pipeline”)

Never cite: blogs without primary documentation, AI speculation, unverified forums.

If intent is unclear: state “Assumed intent: … (evidence: path/file)”—do not fabricate certainty.

3. Required Analytical Passes

Pass Objective Output Artifact (temp)
Inventory Enumerate clusters, controllers, charts, services components-inventory.tmp
Infra Mapping Link Helm chart dirs → deployed capability infra-map.tmp
Dependency Semantics For each tool, extract role + why it fits ecosystem deps-role.tmp
Cross-Cutting Extraction Logging, metrics, tracing, cert issuance, routing, runners cross-cutting.tmp
Intent Derivation Infer “why” from structure + naming + composition intent-hypotheses.tmp
Vocabulary Harvest Collect domain / ops terms glossary-draft.tmp

Delete temp artifacts after merge (do not commit).

4. Technology Buckets to Interpret

Bucket Examples in Repo Clarify Meaning
Ingress / Edge Traefik, NGINX (experimental) Traffic routing, TLS termination, middleware policies
Cert & PKI cert-manager, issuers Automated certificate lifecycle & trust anchors
Observability Prometheus stack, Alloy, Loki, Mimir, Tempo, Grafana Metrics, logs, traces, dashboards—correlation intent
CI Runtime GitHub Actions runner controller & scale sets Elastic ephemeral build/CI capacity
Secrets / Security (Secrets dirs, akeyless experimental) Secret injection pattern & variance
Example Services echo, quote Baseline service topology / ingress patterns
Cluster Ops Metrics server, tainters Scheduling & autoscaling signals

For each: articulate why it must exist together (compositional intent).

5. Structural & Style Rules

  • Headings start at ## (no # inside body doc)
  • Active voice; no future tense unless roadmap
  • Prefer: “X enables Y by Z”
  • Mermaid allowed (graph TD, sequence) if clarifies (word count excludes code fences)
  • Footnotes: numeric under ## References
  • Backticks for literal identifiers (dirs, resource kinds)
  • Relative links to internal docs when they exist
  • No external images; no marketing adjectives
  • “Last Reviewed: YYYY-MM-DD” near top
  • Accessibility: semantic headings, descriptive alt text if any media, table headers used
  • Security: redact/replace secrets with <REDACTED> / <PLACEHOLDER>

6. Online Lookup Guidance

For each external component:

  1. Retrieve official definition (landing/docs)
  2. Paraphrase minimal clarifying role (no large quotes)
  3. Contrast repo usage vs canonical pattern (note deviations)
  4. Footnote URL (deduplicate)

If overlapping tools (e.g., Traefik + NGINX): state hypothesized rationale (e.g., evaluation, fallback).

7. Decision & Intent Framing Template

Use inline micro-template (not full ADR) for implicit decisions:

Decision: Adopt <tool/practice> for <problem>. Intent: Enable <desired property>. Alternatives (implicit): <alt1>, <alt2> (not chosen due to <reason>). Evidence: <path or chart dir>

≤40 words per block; only when it clarifies.

8. Risk / Trade-off Categories

Category Prompt
Complexity Does multi-layer observability add ops burden?
Vendor / API Drift Upgrade exposure & version pinning
Scale Characteristics Horizontal vs vertical scaling pressures
Reliability Single ingress or control plane chokepoints
Security Secret distribution surface / cert chain risks
Operational Load Manual rotation / bootstrap tasks

Include only if evidence-backed.

9. Completion Checklist

  • Word count ≤2000 (excluding footnotes, fenced code, diagrams)
  • Every major directory category referenced
  • Each external tech: role + rationale/assumption
  • Cohesive topology (diagram or precise prose)
  • Cross-cutting concerns each have intent statement
  • No unverifiable claims
  • References section present & deduplicated
  • Glossary terms appear ≥2× (else trimmed)
  • Implicit decisions framed where needed

10. Failure Conditions (Reject & Revise)

  • Speculation without “Assumed” qualifier
  • Marketing adjectives / filler
  • Missing rationale for any critical component

  • 2000 word body

  • Non-authoritative or missing external sources
  • Duplicate tooling unexplained

11. Submission Notes

Prefer concise acknowledged uncertainty over fabricated linkage. Tightness > breadth.

12. References Section Structure (Example)

[1] Traefik – Official Docs https://doc.traefik.io/ 
[2] cert-manager – Project Site https://cert-manager.io/ 
[3] Prometheus – Overview https://prometheus.io/docs/introduction/overview/ ...
Originally created by @Ryangr0 on GitHub. # Architecture & System Intent Documentation Request > Goal: Commission a single authoritative architecture & intent document (≤2000 words) that explains WHAT exists, WHY it exists, and HOW it coheres—grounded in this repo plus authoritative external sources for referenced technologies. --- ## 1. Deliverable Produce `docs/techdocs/docs/architecture/architecture-intent.md` (or update if exists) containing: 1. Purpose (≤40 words) 2. Executive Snapshot (bullet high‑level: systems, infra, runtime context) 3. Conceptual Architecture (narrative + optional mermaid) 4. Domain & Problem Framing (what user / business problems are solved) 5. System Components & Responsibilities (each: intent, key tech, rationale) 6. External Dependencies & Rationale (why chosen vs common alternatives) 7. Cross‑Cutting Concerns - Configuration strategy - Observability (what signals mean what) - Security posture (surface, isolation, secrets approach) 8. Operational Model - Deployment flow & environments - Scaling & resilience levers 9. Evolution & Constraints - Explicit trade‑offs - Known debt / intentional simplifications 10. Glossary (only terms actually used) 11. Reference Footnotes (indexed, authoritative sources only) Hard limits: - Total ≤2000 words (exclude footnotes list, code fences, diagrams) - Each component description ≤70 words - No filler (“robust”, “best-of-breed”)—state facts & intent --- ## 2. Sources to Consult Priority order (cite with footnotes): 1. Repository contents (code, Helm charts, manifests, ADRs if any) 2. Commit messages referencing foundational setup 3. Official documentation for named tools (e.g., cert-manager, Traefik, GitHub Actions runner controller, Grafana stack, Prometheus, Loki, Mimir, Tempo) 4. CNCF / vendor architecture references (only if directly relevant) 5. Industry-standard definitions (e.g., “ingress controller”, “observability pipeline”) Never cite: blogs without primary documentation, AI speculation, unverified forums. If intent is unclear: state “Assumed intent: … (evidence: path/file)”—do not fabricate certainty. --- ## 3. Required Analytical Passes | Pass | Objective | Output Artifact (temp) | |------|-----------|------------------------| | Inventory | Enumerate clusters, controllers, charts, services | components-inventory.tmp | | Infra Mapping | Link Helm chart dirs → deployed capability | infra-map.tmp | | Dependency Semantics | For each tool, extract role + why it fits ecosystem | deps-role.tmp | | Cross-Cutting Extraction | Logging, metrics, tracing, cert issuance, routing, runners | cross-cutting.tmp | | Intent Derivation | Infer “why” from structure + naming + composition | intent-hypotheses.tmp | | Vocabulary Harvest | Collect domain / ops terms | glossary-draft.tmp | Delete temp artifacts after merge (do not commit). --- ## 4. Technology Buckets to Interpret | Bucket | Examples in Repo | Clarify Meaning | |--------|------------------|-----------------| | Ingress / Edge | Traefik, NGINX (experimental) | Traffic routing, TLS termination, middleware policies | | Cert & PKI | cert-manager, issuers | Automated certificate lifecycle & trust anchors | | Observability | Prometheus stack, Alloy, Loki, Mimir, Tempo, Grafana | Metrics, logs, traces, dashboards—correlation intent | | CI Runtime | GitHub Actions runner controller & scale sets | Elastic ephemeral build/CI capacity | | Secrets / Security | (Secrets dirs, akeyless experimental) | Secret injection pattern & variance | | Example Services | echo, quote | Baseline service topology / ingress patterns | | Cluster Ops | Metrics server, tainters | Scheduling & autoscaling signals | For each: articulate *why it must exist together* (compositional intent). --- ## 5. Structural & Style Rules - Headings start at `##` (no `#` inside body doc) - Active voice; no future tense unless roadmap - Prefer: “X enables Y by Z” - Mermaid allowed (`graph TD`, sequence) if clarifies (word count excludes code fences) - Footnotes: numeric under `## References` - Backticks for literal identifiers (dirs, resource kinds) - Relative links to internal docs when they exist - No external images; no marketing adjectives - “Last Reviewed: YYYY-MM-DD” near top - Accessibility: semantic headings, descriptive alt text if any media, table headers used - Security: redact/replace secrets with `<REDACTED>` / `<PLACEHOLDER>` --- ## 6. Online Lookup Guidance For each external component: 1. Retrieve official definition (landing/docs) 2. Paraphrase minimal clarifying role (no large quotes) 3. Contrast repo usage vs canonical pattern (note deviations) 4. Footnote URL (deduplicate) If overlapping tools (e.g., Traefik + NGINX): state hypothesized rationale (e.g., evaluation, fallback). --- ## 7. Decision & Intent Framing Template Use inline micro-template (not full ADR) for implicit decisions: ``` Decision: Adopt <tool/practice> for <problem>. Intent: Enable <desired property>. Alternatives (implicit): <alt1>, <alt2> (not chosen due to <reason>). Evidence: <path or chart dir> ``` ≤40 words per block; only when it clarifies. --- ## 8. Risk / Trade-off Categories | Category | Prompt | |----------|--------| | Complexity | Does multi-layer observability add ops burden? | | Vendor / API Drift | Upgrade exposure & version pinning | | Scale Characteristics | Horizontal vs vertical scaling pressures | | Reliability | Single ingress or control plane chokepoints | | Security | Secret distribution surface / cert chain risks | | Operational Load | Manual rotation / bootstrap tasks | Include only if evidence-backed. --- ## 9. Completion Checklist - [ ] Word count ≤2000 (excluding footnotes, fenced code, diagrams) - [ ] Every major directory category referenced - [ ] Each external tech: role + rationale/assumption - [ ] Cohesive topology (diagram or precise prose) - [ ] Cross-cutting concerns each have intent statement - [ ] No unverifiable claims - [ ] References section present & deduplicated - [ ] Glossary terms appear ≥2× (else trimmed) - [ ] Implicit decisions framed where needed --- ## 10. Failure Conditions (Reject & Revise) - Speculation without “Assumed” qualifier - Marketing adjectives / filler - Missing rationale for any critical component - >2000 word body - Non-authoritative or missing external sources - Duplicate tooling unexplained --- ## 11. Submission Notes Prefer concise acknowledged uncertainty over fabricated linkage. Tightness > breadth. --- ## 12. References Section Structure (Example) ``` [1] Traefik – Official Docs https://doc.traefik.io/ [2] cert-manager – Project Site https://cert-manager.io/ [3] Prometheus – Overview https://prometheus.io/docs/introduction/overview/ ... ```
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