46fda89e18
New internal plugin: weekly LLM probes of core peptides (Perplexity sonar + GPT/Gemini-search via OpenRouter/CF gateway) -> custom table -> wp-admin trendline + standings. Provider interface + cost ledger w/ hard $5/mo cap + collector/panel seam (AI-visibility only). v1 = AI-visibility only. QA: APPROVE-WITH-P2-NOTES — qa-reviews/peptide-geo-monitor/2026-06-13-f488f4a966cbb9e771d3abc20daee3fa49074520.md (P2 follow-ups: ltrim www display bug, PHPCS mandatory, dead cache) Agent-Session: geomonitor v0.1.0 merge
189 lines
9.4 KiB
Markdown
189 lines
9.4 KiB
Markdown
# Architecture — Peptide GEO Monitor
|
||
|
||
**Version:** 0.1.0 | **Last updated:** 2026-06-13
|
||
|
||
---
|
||
|
||
## 1. Overview
|
||
|
||
`peptide-geo-monitor` is an internal WordPress plugin that runs weekly server-side LLM probes to measure whether peptiderepo.com appears in AI citations across core peptide queries. It stores a time-series in a custom table and renders an admin dashboard.
|
||
|
||
**v1 scope:** AI-visibility only. The collector/panel seam is present so future data categories (keyword rankings, technical-SEO) can be added as new classes.
|
||
|
||
---
|
||
|
||
## 2. File tree
|
||
|
||
```
|
||
peptide-geo-monitor/
|
||
├── peptide-geo-monitor.php # Plugin boot: constants, autoloader, hooks
|
||
├── uninstall.php # Full data teardown: DROP TABLE + DELETE pgm_* options
|
||
├── composer.json # Dev deps (PHPCS only)
|
||
├── phpcs.xml.dist # PHPCS config (WordPress standard)
|
||
├── includes/
|
||
│ ├── core/
|
||
│ │ ├── class-pgm-autoloader.php # SPL autoloader: PGM_* → includes/**
|
||
│ │ ├── class-pgm-plugin.php # Orchestrator: boots sub-systems
|
||
│ │ ├── class-pgm-activator.php # Activation: table + defaults + cron
|
||
│ │ ├── class-pgm-deactivator.php # Deactivation: clear cron
|
||
│ │ ├── class-pgm-table-manager.php # dbDelta create/drop + get_table_name()
|
||
│ │ ├── class-pgm-config.php # Typed getters + seed_defaults()
|
||
│ │ ├── class-pgm-cron.php # Weekly WP-Cron schedule/clear
|
||
│ │ ├── class-pgm-cost-ledger.php # MTD cost + hard monthly cap enforcement
|
||
│ │ ├── class-pgm-probe-result.php # Immutable value object from a probe call
|
||
│ │ ├── class-pgm-probe-runner.php # Orchestrates peptide×intent×model run
|
||
│ │ ├── class-pgm-collector-registry.php # Singleton registry for collectors + panels
|
||
│ │ └── class-pgm-admin-page.php # Admin page: menu, Run now, rendering
|
||
│ ├── providers/
|
||
│ │ ├── interface-pgm-probe-provider.php # probe(query): PGM_Probe_Result contract
|
||
│ │ ├── class-pgm-gateway-client.php # Cloudflare AI Gateway HTTP + retry
|
||
│ │ ├── class-pgm-citation-detector.php # Domain extraction + cite detection
|
||
│ │ ├── class-pgm-perplexity-provider.php # Perplexity sonar via OpenRouter/gateway
|
||
│ │ └── class-pgm-openrouter-provider.php # Generic OpenRouter (GPT-search, Gemini)
|
||
│ ├── collector/
|
||
│ │ ├── interface-pgm-data-collector.php # collect(): array seam
|
||
│ │ └── class-pgm-ai-visibility-collector.php # AI-visibility data from DB
|
||
│ └── panel/
|
||
│ ├── interface-pgm-dashboard-panel.php # render(data): void seam
|
||
│ └── class-pgm-ai-visibility-panel.php # Renders trendline + standings
|
||
├── tests/
|
||
│ ├── bootstrap.php # WP-stub bootstrap (no PHPUnit)
|
||
│ └── unit/
|
||
│ ├── test-citation-detector.php # Domain parsing + cite detection
|
||
│ ├── test-score-calc.php # Visibility score formula
|
||
│ ├── test-cost-ledger.php # MTD cost + budget cap
|
||
│ ├── test-provider-parsing.php # Mock-HTTP provider response parsing
|
||
│ ├── test-cron.php # Schedule/clear + activation/deactivation
|
||
│ ├── test-probe-runner.php # Run mechanics + budget abort
|
||
│ └── test-uninstall.php # Table drop + option purge
|
||
└── .github/workflows/ci.yml # PHP lint matrix + PHPCS + 300-line check
|
||
```
|
||
|
||
---
|
||
|
||
## 3. Data flow
|
||
|
||
```
|
||
WP-Cron (weekly) ──────────────────────────────────────┐
|
||
Admin "Run now" (POST + nonce) ─────────────────────────┤
|
||
↓
|
||
PGM_Probe_Runner::run()
|
||
│
|
||
┌───────────────────────────────────┤
|
||
│ for each peptide × intent × model│
|
||
│ │
|
||
│ PGM_Cost_Ledger::can_afford() │
|
||
│ └─ ABORT gracefully if at cap │
|
||
│ │
|
||
│ PGM_Probe_Provider::probe(query) │
|
||
│ └─ PGM_Gateway_Client │
|
||
│ └─ Cloudflare AI Gateway │
|
||
│ └─ OpenRouter │
|
||
│ └─ LLM │
|
||
│ │
|
||
│ PGM_Citation_Detector │
|
||
│ └─ extract domains │
|
||
│ └─ detect peptiderepo.com │
|
||
│ │
|
||
│ $wpdb→insert(pgm_ai_visibility) │
|
||
│ PGM_Cost_Ledger::update_row_cost()│
|
||
└───────────────────────────────────┘
|
||
│
|
||
Admin page load ────────────────────────────────────────┤
|
||
↓
|
||
PGM_Admin_Page::render_page()
|
||
│
|
||
PGM_Collector_Registry
|
||
│
|
||
PGM_Ai_Visibility_Collector::collect()
|
||
│ (DB reads)
|
||
PGM_Ai_Visibility_Panel::render()
|
||
│ (HTML output)
|
||
Browser (Chart.js)
|
||
```
|
||
|
||
---
|
||
|
||
## 4. Database
|
||
|
||
**Table:** `{prefix}pgm_ai_visibility`
|
||
|
||
| Column | Type | Notes |
|
||
|--------|------|-------|
|
||
| id | BIGINT UNSIGNED PK | Auto-increment |
|
||
| run_id | VARCHAR(36) | UUID per run |
|
||
| captured_at | DATETIME | UTC |
|
||
| peptide_slug | VARCHAR(200) | e.g. "bpc-157" |
|
||
| peptide_label | VARCHAR(200) | e.g. "BPC-157" |
|
||
| model | VARCHAR(200) | e.g. "perplexity/sonar" |
|
||
| prompt_intent | VARCHAR(200) | Template string |
|
||
| cited | TINYINT(1) | 1 = peptiderepo.com in sources |
|
||
| our_position | INT NULL | 1-based position; NULL if not cited |
|
||
| source_domains | LONGTEXT | JSON array of domains |
|
||
| raw_excerpt | LONGTEXT | First 500 chars of LLM response |
|
||
| cost_usd | DECIMAL(12,8) | Actual call cost |
|
||
|
||
Schema version tracked in `pgm_schema_version` option.
|
||
|
||
---
|
||
|
||
## 5. External API integrations
|
||
|
||
### Cloudflare AI Gateway
|
||
|
||
All LLM calls route through:
|
||
```
|
||
https://gateway.ai.cloudflare.com/v1/{PGM_CF_ACCOUNT_ID}/{PGM_CF_GATEWAY_ID}/openrouter
|
||
```
|
||
|
||
Falls back to direct OpenRouter (`https://openrouter.ai/api/v1`) when the constants are absent or empty.
|
||
|
||
Pattern mirrors PRAutoBlogger's `class-open-router-config.php` and `class-open-router-request-builder.php` — same auth injection, same cURL belt-and-suspenders for Hostinger.
|
||
|
||
### Providers (v1)
|
||
|
||
| Provider | Model | Citation source |
|
||
|----------|-------|-----------------|
|
||
| PGM_Perplexity_Provider | `perplexity/sonar` | `citations[]` array (primary, real-web retrieval) |
|
||
| PGM_OpenRouter_Provider | `openai/gpt-4o-search-preview` | annotations or inline URL regex |
|
||
| PGM_OpenRouter_Provider | `google/gemini-2.0-flash-001` | annotations or inline URL regex |
|
||
|
||
---
|
||
|
||
## 6. Collector / Panel seam
|
||
|
||
```
|
||
PGM_Data_Collector (interface) PGM_Dashboard_Panel (interface)
|
||
│ │
|
||
PGM_Ai_Visibility_Collector PGM_Ai_Visibility_Panel
|
||
│ │
|
||
└──────── PGM_Collector_Registry ──────────┘
|
||
(key: "ai_visibility")
|
||
```
|
||
|
||
To add a future SEO collector (keyword rankings, schema coverage…):
|
||
1. Implement `PGM_Data_Collector` + `PGM_Dashboard_Panel`.
|
||
2. Register both in `PGM_Plugin::init()`.
|
||
No dashboard shell changes required.
|
||
|
||
---
|
||
|
||
## 7. Security
|
||
|
||
- Secrets read from `wp-config.php` constants at runtime — never hardcoded.
|
||
- All admin actions: `manage_options` capability check + nonce verification.
|
||
- All DB values escaped with `$wpdb->prepare()`.
|
||
- All HTML output escaped with `esc_html()`, `esc_url()`, `wp_json_encode()`.
|
||
|
||
---
|
||
|
||
## 8. Key decisions
|
||
|
||
| Decision | Rationale |
|
||
|----------|-----------|
|
||
| Use OpenRouter for all models | Single API key, single gateway URL, Perplexity sonar is accessible via OpenRouter's model routing. |
|
||
| Perplexity sonar as primary | Returns an explicit `citations[]` array — the most faithful citation signal available. |
|
||
| Cost ledger from visibility table | No separate ledger table needed; `SUM(cost_usd)` per calendar month is sufficient and keeps the schema minimal. |
|
||
| Chart.js via CDN | No build step, no bundler, admin-only load, pinned version. |
|
||
| Plain PHP tests (no PHPUnit) | Mirrors peptide-repo-core's pattern; CI runs in the lint-php job with no extra setup. |
|