Changes for page POC1 API & Schemas Specification

Last modified by Robert Schaub on 2025/12/24 18:26

From 4.1 to 3.1

From version 3.1

edited by Robert Schaub
on 2025/12/24 16:32

Change comment: There is no comment for this version

To version 1.1

edited by Robert Schaub
on 2025/12/24 11:54

Change comment: Imported from XAR

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@@ -1,578 +1,673 @@
--= POC1 API & Schemas Specification =
++# FactHarbor POC1 — API & Schemas Specification
------
++**Version:** 0.3 (POC1 - Production Ready)
++**Namespace:** FactHarbor.*
++**Syntax:** xWiki 2.1
++**Last Updated:** 2025-12-24
++---
++
  == Version History ==
  |=Version|=Date|=Changes
--|0.4.1|2025-12-24|Applied 9 critical fixes: file format notice, verdict taxonomy, canonicalization algorithm, Stage 1 cost policy, BullMQ fix, language in cache key, historical claims TTL, idempotency, copyright policy
--|0.4|2025-12-24|**BREAKING:** 3-stage pipeline with claim-level caching, user tier system, cache-only mode for free users, Redis cache architecture
--|0.3.1|2025-12-24|Fixed single-prompt strategy, SSE clarification, schema canonicalization, cost constraints
--|0.3|2025-12-24|Added complete API endpoints, LLM config, risk tiers, scraping details
++|0.3|2025-12-24|Added complete API endpoints, LLM config, risk tiers, scraping details, quality gate logging, temporal separation note, cross-references
++|0.2|2025-12-24|Initial rebased version with holistic assessment
++|0.1|2025-12-24|Original specification
------
++---
  == 1. Core Objective (POC1) ==
--The primary technical goal of POC1 is to validate **Approach 1 (Single-Pass Holistic Analysis)** while implementing **claim-level caching** to achieve cost sustainability.
++The primary technical goal of POC1 is to validate **Approach 1 (Single-Pass Holistic Analysis)**:
--The system must prove that AI can identify an article's **Main Thesis** and determine if supporting claims logically support that thesis without committing fallacies.
++The system must prove that AI can identify an article's **Main Thesis** and determine if the supporting claims (even if individually accurate) logically support that thesis without committing fallacies (e.g., correlation vs. causation, cherry-picking, hasty generalization).
--=== Success Criteria: ===
--
++**Success Criteria:**
  * Test with 30 diverse articles
  * Target: ≥70% accuracy detecting misleading articles
--* Cost: <$0.25 per NEW analysis (uncached)
--* Cost: $0.00 for cached claim reuse
--* Cache hit rate: ≥50% after 1,000 articles
++* Cost: <$0.35 per analysis
  * Processing time: <2 minutes (standard depth)
--=== Economic Model: ===
++**See:** [[Article Verdict Problem>>Test.FactHarbor.Specification.POC.Article-Verdict-Problem]] for complete investigation of 7 approaches.
--* **Free tier:** $10 credit per month (~~40-140 articles depending on cache hits)
--* **After limit:** Cache-only mode (instant, free access to cached claims)
--* **Paid tier:** Unlimited new analyses
++---
------
++== 2. Runtime Model & Job States ==
--== 2. Architecture Overview ==
++=== 2.1 Pipeline Steps ===
--=== 2.1 3-Stage Pipeline with Caching ===
++For progress reporting via API, the pipeline follows these stages:
--FactHarbor POC1 uses a **3-stage architecture** designed for claim-level caching and cost efficiency:
++# **INGEST**: URL scraping (Jina Reader / Trafilatura) or text normalization.
++# **EXTRACT_CLAIMS**: Identifying 3-5 verifiable factual claims + marking central vs. supporting.
++# **SCENARIOS**: Generating context interpretations for each claim.
++# **RETRIEVAL**: Evidence gathering (Search API + mandatory contradiction search).
++# **VERDICTS**: Assigning likelihoods, confidence, and uncertainty per scenario.
++# **HOLISTIC_ASSESSMENT**: Evaluating article-level credibility (Thesis vs. Claims logic).
++# **REPORT**: Generating final Markdown and JSON outputs.
--{{mermaid}}
--graph TD
--    A[Article Input] --> B[Stage 1: Extract Claims]
--    B --> C{For Each Claim}
--    C --> D[Check Cache]
--    D -->|Cache HIT| E[Return Cached Verdict]
--    D -->|Cache MISS| F[Stage 2: Analyze Claim]
--    F --> G[Store in Cache]
--    G --> E
--    E --> H[Stage 3: Holistic Assessment]
--    H --> I[Final Report]
--{{/mermaid}}
++=== 2.1.1 URL Extraction Strategy ===
--==== Stage 1: Claim Extraction (Haiku, no cache) ====
++**Primary:** Jina AI Reader ({{code}}https://r.jina.ai/{url}{{/code}})
++* **Rationale:** Clean markdown, handles JS rendering, free tier sufficient
++* **Fallback:** Trafilatura (Python library) for simple static HTML
--* **Input:** Article text
--* **Output:** 5 canonical claims (normalized, deduplicated)
--* **Model:** Claude Haiku 4
--* **Cost:** $0.003 per article
--* **Cache strategy:** No caching (article-specific)
++**Error Handling:**
--==== Stage 2: Claim Analysis (Sonnet, CACHED) ====
++|=Error Code|=Trigger|=Action
++|{{code}}URL_BLOCKED{{/code}}|403/401/Paywall detected|Return error, suggest text paste
++|{{code}}URL_UNREACHABLE{{/code}}|Network/DNS failure|Retry once, then fail
++|{{code}}URL_NOT_FOUND{{/code}}|404 Not Found|Return error immediately
++|{{code}}EXTRACTION_FAILED{{/code}}|Content <50 words or unreadable|Return error with reason
--* **Input:** Single canonical claim
--* **Output:** Scenarios + Evidence + Verdicts
--* **Model:** Claude Sonnet 3.5
--* **Cost:** $0.081 per NEW claim
--* **Cache strategy:** Redis, 90-day TTL
--* **Cache key:** claim:v1norm1:{language}:{sha256(canonical_claim)}
++**Supported URL Patterns:**
++* ✅ News articles, blog posts, Wikipedia
++* ✅ Academic preprints (arXiv)
++* ❌ Social media posts (Twitter, Facebook) - not in POC1
++* ❌ Video platforms (YouTube, TikTok) - not in POC1
++* ❌ PDF files - deferred to Beta 0
--==== Stage 3: Holistic Assessment (Sonnet, no cache) ====
++=== 2.2 Job Status Enumeration ===
--* **Input:** Article + Claim verdicts (from cache or Stage 2)
--* **Output:** Article verdict + Fallacies + Logic quality
--* **Model:** Claude Sonnet 3.5
--* **Cost:** $0.030 per article
--* **Cache strategy:** No caching (article-specific)
++(((
++* **QUEUED** - Job accepted, waiting in queue
++* **RUNNING** - Processing in progress
++* **SUCCEEDED** - Analysis complete, results available
++* **FAILED** - Error occurred, see error details
++* **CANCELLED** - User cancelled via DELETE endpoint
++)))
--=== Total Cost Formula: ===
++---
--{{{Cost = $0.003 (extraction) + (N_new_claims × $0.081) + $0.030 (holistic)
++== 3. REST API Contract ==
--Examples:
--- 0 new claims (100% cache hit): $0.033
--- 1 new claim (80% cache hit): $0.114
--- 3 new claims (40% cache hit): $0.276
--- 5 new claims (0% cache hit): $0.438
--}}}
++=== 3.1 Create Analysis Job ===
------
++**Endpoint:** {{code}}POST /v1/analyze{{/code}}
--=== 2.2 User Tier System ===
++**Request Body Example:**
++{{code language="json"}}
++{
++  "input_type": "url",
++  "input_url": "https://example.com/medical-report-01",
++  "input_text": null,
++  "options": {
++    "browsing": "on",
++    "depth": "standard",
++    "max_claims": 5,
++    "context_aware_analysis": true
++  },
++  "client": {
++    "request_id": "optional-client-tracking-id",
++    "source_label": "optional"
++  }
++}
++{{/code}}
--|=Tier|=Monthly Credit|=After Limit|=Cache Access|=Analytics
--|**Free**|$10|Cache-only mode|✅ Full|Basic
--|**Pro** (future)|$50|Continues|✅ Full|Advanced
--|**Enterprise** (future)|Custom|Continues|✅ Full + Priority|Full
++**Options:**
++* {{code}}browsing{{/code}}: {{code}}on{{/code}} | {{code}}off{{/code}} (retrieve web sources or just output queries)
++* {{code}}depth{{/code}}: {{code}}standard{{/code}} | {{code}}deep{{/code}} (evidence thoroughness)
++* {{code}}max_claims{{/code}}: 1-50 (default: 10)
++* {{code}}context_aware_analysis{{/code}}: {{code}}true{{/code}} | {{code}}false{{/code}} (experimental)
--**Free Tier Economics:**
++**Response:** {{code}}202 Accepted{{/code}}
--* $10 credit = 40-140 articles analyzed (depending on cache hit rate)
--* Average 70 articles/month at 70% cache hit rate
--* After limit: Cache-only mode
++{{code language="json"}}
++{
++  "job_id": "01J...ULID",
++  "status": "QUEUED",
++  "created_at": "2025-12-24T10:31:00Z",
++  "links": {
++    "self": "/v1/jobs/01J...ULID",
++    "result": "/v1/jobs/01J...ULID/result",
++    "report": "/v1/jobs/01J...ULID/report",
++    "events": "/v1/jobs/01J...ULID/events"
++  }
++}
++{{/code}}
------
++---
--=== 2.3 Cache-Only Mode (Free Tier Feature) ===
++=== 3.2 Get Job Status ===
--When free users reach their $10 monthly limit, they enter **Cache-Only Mode**:
++**Endpoint:** {{code}}GET /v1/jobs/{job_id}{{/code}}
--==== What Cache-Only Mode Provides: ====
++**Response:** {{code}}200 OK{{/code}}
--✅ **Claim Extraction (Platform-Funded):**
++{{code language="json"}}
++{
++  "job_id": "01J...ULID",
++  "status": "RUNNING",
++  "created_at": "2025-12-24T10:31:00Z",
++  "updated_at": "2025-12-24T10:31:22Z",
++  "progress": {
++    "step": "RETRIEVAL",
++    "percent": 60,
++    "message": "Gathering evidence for C2-S1",
++    "current_claim_id": "C2",
++    "current_scenario_id": "C2-S1"
++  },
++  "input_echo": {
++    "input_type": "url",
++    "input_url": "https://example.com/medical-report-01"
++  },
++  "links": {
++    "self": "/v1/jobs/01J...ULID",
++    "result": "/v1/jobs/01J...ULID/result",
++    "report": "/v1/jobs/01J...ULID/report"
++  },
++  "error": null
++}
++{{/code}}
--* Stage 1 extraction runs at $0.003 per article
--* **Cost: Absorbed by platform** (not charged to user credit)
--* Rationale: Extraction is necessary to check cache, and cost is negligible
--* Rate limit: Max 50 extractions/day in cache-only mode (prevents abuse)
++---
--✅ **Instant Access to Cached Claims:**
++=== 3.3 Get JSON Result ===
--* Any claim that exists in cache → Full verdict returned
--* Cost: $0 (no LLM calls)
--* Response time: <100ms
++**Endpoint:** {{code}}GET /v1/jobs/{job_id}/result{{/code}}
--✅ **Partial Article Analysis:**
++**Response:** {{code}}200 OK{{/code}} (Returns the **AnalysisResult** schema - see Section 4)
--* Check each claim against cache
--* Return verdicts for ALL cached claims
--* For uncached claims: Return "status": "cache_miss"
++**Other Responses:**
++* {{code}}409 Conflict{{/code}} - Job not finished yet
++* {{code}}404 Not Found{{/code}} - Job ID unknown
--✅ **Cache Coverage Report:**
++---
--* "3 of 5 claims available in cache (60% coverage)"
--* Links to cached analyses
--* Estimated cost to complete: $0.162 (2 new claims)
++=== 3.4 Download Markdown Report ===
--❌ **Not Available in Cache-Only Mode:**
++**Endpoint:** {{code}}GET /v1/jobs/{job_id}/report{{/code}}
--* New claim analysis (Stage 2 LLM calls blocked)
--* Full holistic assessment (Stage 3 blocked if any claims missing)
++**Response:** {{code}}200 OK{{/code}} with {{code}}text/markdown; charset=utf-8{{/code}} content
--==== User Experience Example: ====
++**Headers:**
++* {{code}}Content-Disposition: attachment; filename="factharbor_poc1_{job_id}.md"{{/code}}
--{{{{
--  "status": "cache_only_mode",
--  "message": "Monthly credit limit reached. Showing cached results only.",
--  "cache_coverage": {
--    "claims_total": 5,
--    "claims_cached": 3,
--    "claims_missing": 2,
--    "coverage_percent": 60
--  },
--  "cached_claims": [
--    {"claim_id": "C1", "verdict": "Likely", "confidence": 0.82},
--    {"claim_id": "C2", "verdict": "Highly Likely", "confidence": 0.91},
--    {"claim_id": "C4", "verdict": "Unclear", "confidence": 0.55}
--  ],
--  "missing_claims": [
--    {"claim_id": "C3", "claim_text": "...", "estimated_cost": "$0.081"},
--    {"claim_id": "C5", "claim_text": "...", "estimated_cost": "$0.081"}
--  ],
--  "upgrade_options": {
--    "top_up": "$5 for 20-70 more articles",
--    "pro_tier": "$50/month unlimited"
--  }
--}
--}}}
++**Other Responses:**
++* {{code}}409 Conflict{{/code}} - Job not finished
++* {{code}}404 Not Found{{/code}} - Job unknown
--**Design Rationale:**
++---
--* Free users still get value (cached claims often answer their question)
--* Demonstrates FactHarbor's value (partial results encourage upgrade)
--* Sustainable for platform (no additional cost)
--* Fair to all users (everyone contributes to cache)
++=== 3.5 Stream Job Events (Optional, Recommended) ===
------
++**Endpoint:** {{code}}GET /v1/jobs/{job_id}/events{{/code}}
--== 3. REST API Contract ==
++**Response:** Server-Sent Events (SSE) stream
--=== 3.1 User Credit Tracking ===
++**Event Types:**
++* {{code}}progress{{/code}} - Progress update
++* {{code}}claim_extracted{{/code}} - Claim identified
++* {{code}}verdict_computed{{/code}} - Scenario verdict complete
++* {{code}}complete{{/code}} - Job finished
++* {{code}}error{{/code}} - Error occurred
--**Endpoint:** GET /v1/user/credit
++---
--**Response:** 200 OK
++=== 3.6 Cancel Job ===
--{{{{
--  "user_id": "user_abc123",
--  "tier": "free",
--  "credit_limit": 10.00,
--  "credit_used": 7.42,
--  "credit_remaining": 2.58,
--  "reset_date": "2025-02-01T00:00:00Z",
--  "cache_only_mode": false,
--  "usage_stats": {
--    "articles_analyzed": 67,
--    "claims_from_cache": 189,
--    "claims_newly_analyzed": 113,
--    "cache_hit_rate": 0.626
--  }
--}
--}}}
++**Endpoint:** {{code}}DELETE /v1/jobs/{job_id}{{/code}}
------
++Attempts to cancel a queued or running job.
--=== 3.2 Create Analysis Job (3-Stage) ===
++**Response:** {{code}}200 OK{{/code}} with updated Job object (status: CANCELLED)
--**Endpoint:** POST /v1/analyze
++**Note:** Already-completed jobs cannot be cancelled.
--==== Idempotency Support: ====
++---
--To prevent duplicate job creation on network retries, clients SHOULD include:
++=== 3.7 Health Check ===
--{{{POST /v1/analyze
--Idempotency-Key: {client-generated-uuid}
--}}}
++**Endpoint:** {{code}}GET /v1/health{{/code}}
--OR use the client.request_id field:
++**Response:** {{code}}200 OK{{/code}}
--{{{{
--  "input_url": "...",
--  "client": {
--    "request_id": "client-uuid-12345",
--    "source_label": "optional"
--  }
++{{code language="json"}}
++{
++  "status": "ok",
++  "version": "POC1-v0.3",
++  "model": "claude-3-5-sonnet-20241022"
  }
--}}}
++{{/code}}
--**Server Behavior:**
++---
--* If Idempotency-Key or request_id seen before (within 24 hours):
--** Return existing job (200 OK, not 202 Accepted)
--** Do NOT create duplicate job or charge twice
--* Idempotency keys expire after 24 hours (matches job retention)
++== 4. AnalysisResult Schema (Context-Aware) ==
--**Example Response (Idempotent):**
++This schema implements the **Context-Aware Analysis** required by the POC1 specification.
--{{{{
--  "job_id": "01J...ULID",
--  "status": "RUNNING",
--  "idempotent": true,
--  "original_request_at": "2025-12-24T10:31:00Z",
--  "message": "Returning existing job (idempotency key matched)"
--}
--}}}
--
--==== Request Body: ====
--
--{{{{
--  "input_type": "url",
--  "input_url": "https://example.com/medical-report-01",
--  "input_text": null,
--  "options": {
--    "browsing": "on",
--    "depth": "standard",
--    "max_claims": 5,
--    "scenarios_per_claim": 2,
--    "max_evidence_per_scenario": 6,
--    "context_aware_analysis": true
++{{code language="json"}}
++{
++  "metadata": {
++    "job_id": "string (ULID)",
++    "timestamp_utc": "ISO8601",
++    "engine_version": "POC1-v0.3",
++    "llm_provider": "anthropic",
++    "llm_model": "claude-3-5-sonnet-20241022",
++    "usage_stats": {
++      "input_tokens": "integer",
++      "output_tokens": "integer",
++      "estimated_cost_usd": "float",
++      "response_time_sec": "float"
++    }
    },
--  "client": {
--    "request_id": "optional-client-tracking-id",
--    "source_label": "optional"
++  "article_holistic_assessment": {
++    "main_thesis": "string (The core argument detected)",
++    "overall_verdict": "WELL-SUPPORTED | MISLEADING | REFUTED | UNCERTAIN",
++    "logic_quality_score": "float (0-1)",
++    "fallacies_detected": ["correlation-causation", "cherry-picking", "hasty-generalization"],
++    "verdict_reasoning": "string (Explanation of why article credibility differs from claim average)",
++    "experimental_feature": true
++  },
++  "claims": [
++    {
++      "claim_id": "C1",
++      "is_central_to_thesis": "boolean",
++      "claim_text": "string",
++      "canonical_form": "string",
++      "claim_type": "descriptive | causal | predictive | normative | definitional",
++      "evaluability": "evaluable | partly_evaluable | not_evaluable",
++      "risk_tier": "A | B | C",
++      "risk_tier_justification": "string",
++      "domain": "string (e.g., 'public health', 'economics')",
++      "key_terms": ["term1", "term2"],
++      "entities": ["Person X", "Org Y"],
++      "time_scope_detected": "2020-2024",
++      "geography_scope_detected": "Brazil",
++      "scenarios": [
++        {
++          "scenario_id": "C1-S1",
++          "context_title": "string",
++          "definitions": {"key_term": "definition"},
++          "assumptions": ["Assumption 1", "Assumption 2"],
++          "boundaries": {
++            "time": "as of 2025-01",
++            "geography": "Brazil",
++            "population": "adult population",
++            "conditions": "excludes X; includes Y"
++          },
++          "scope_of_evidence": "What counts as evidence for this scenario",
++          "scenario_questions": ["Question that decides the verdict"],
++          "verdict": {
++            "label": "Highly Likely | Likely | Unclear | Unlikely | Refuted | Unsubstantiated",
++            "probability_range": [0.0, 1.0],
++            "confidence": "float (0-1)",
++            "reasoning": "string",
++            "key_supporting_evidence_ids": ["E1", "E3"],
++            "key_counter_evidence_ids": ["E2"],
++            "uncertainty_factors": ["Data gap", "Method disagreement"],
++            "what_would_change_my_mind": ["Specific new study", "Updated dataset"]
++          },
++          "evidence": [
++            {
++              "evidence_id": "E1",
++              "stance": "supports | undermines | mixed | context_dependent",
++              "relevance_to_scenario": "float (0-1)",
++              "evidence_summary": ["Bullet fact 1", "Bullet fact 2"],
++              "citation": {
++                "title": "Source title",
++                "author_or_org": "Org/Author",
++                "publication_date": "2024-05-01",
++                "url": "https://source.example",
++                "publisher": "Publisher/Domain"
++              },
++              "excerpt": ["Short quote ≤25 words (optional)"],
++              "source_reliability_score": "float (0-1) - READ-ONLY SNAPSHOT",
++              "reliability_justification": "Why high/medium/low",
++              "limitations_and_reservations": ["Limitation 1", "Limitation 2"],
++              "retraction_or_dispute_signal": "none | correction | retraction | disputed",
++              "retrieval_status": "OK | NEEDS_RETRIEVAL | FAILED"
++            }
++          ]
++        }
++      ]
++    }
++  ],
++  "quality_gates": {
++    "gate1_claim_validation": "pass | fail",
++    "gate4_verdict_confidence": "pass | fail",
++    "passed_all": "boolean",
++    "gate_fail_reasons": [
++      {
++        "gate": "gate1_claim_validation",
++        "claim_id": "C1",
++        "reason_code": "OPINION_DETECTED | COMPOUND_CLAIM | SUBJECTIVE | TOO_VAGUE",
++        "explanation": "Human-readable explanation"
++      }
++    ]
++  },
++  "global_notes": {
++    "limitations": ["System limitation 1", "Limitation 2"],
++    "safety_or_policy_notes": ["Note 1"]
    }
  }
--}}}
++{{/code}}
--**Options:**
++=== 4.1 Risk Tier Definitions ===
--* browsing: on | off (retrieve web sources or just output queries)
--* depth: standard | deep (evidence thoroughness)
--* max_claims: 1-10 (default: **5** for cost control)
--* scenarios_per_claim: 1-5 (default: **2** for cost control)
--* max_evidence_per_scenario: 3-10 (default: **6**)
--* context_aware_analysis: true | false (experimental)
++|=Tier|=Impact|=Examples|=Actions
++|**A (High)**|High real-world impact if wrong|Health claims, safety information, financial advice, medical procedures|Human review recommended (Mode3_Human_Reviewed_Required)
++|**B (Medium)**|Moderate impact, contested topics|Political claims, social issues, scientific debates, economic predictions|Enhanced contradiction search, AI-generated publication OK (Mode2_AI_Generated)
++|**C (Low)**|Low impact, easily verifiable|Historical facts, basic statistics, biographical data, geographic information|Standard processing, AI-generated publication OK (Mode2_AI_Generated)
--**Response:** 202 Accepted
++=== 4.2 Source Reliability (Read-Only Snapshots) ===
--{{{{
--  "job_id": "01J...ULID",
--  "status": "QUEUED",
--  "created_at": "2025-12-24T10:31:00Z",
--  "estimated_cost": 0.114,
--  "cost_breakdown": {
--    "stage1_extraction": 0.003,
--    "stage2_new_claims": 0.081,
--    "stage2_cached_claims": 0.000,
--    "stage3_holistic": 0.030
--  },
--  "cache_info": {
--    "claims_to_extract": 5,
--    "estimated_cache_hits": 4,
--    "estimated_new_claims": 1
--  },
--  "links": {
--    "self": "/v1/jobs/01J...ULID",
--    "result": "/v1/jobs/01J...ULID/result",
--    "report": "/v1/jobs/01J...ULID/report",
--    "events": "/v1/jobs/01J...ULID/events"
--  }
--}
--}}}
++**IMPORTANT:** The {{code}}source_reliability_score{{/code}} in each evidence item is a **historical snapshot** from the weekly background scoring job.
--**Error Responses:**
++* POC1 treats these scores as **read-only** (no modification during analysis)
++* **Prevents circular dependency:** scoring → affects retrieval → affects scoring
++* Full Source Track Record System is a **separate service** (not part of POC1)
++* **Temporal separation:** Scoring runs weekly; analysis uses snapshots
--402 Payment Required - Free tier limit reached, cache-only mode
++**See:** [[Data Model>>Test.FactHarbor.Specification.Data Model.WebHome]] Section 1.3 (Source Track Record System) for scoring algorithm.
--{{{{
--  "error": "credit_limit_reached",
--  "message": "Monthly credit limit reached. Entering cache-only mode.",
--  "cache_only_mode": true,
--  "credit_remaining": 0.00,
--  "reset_date": "2025-02-01T00:00:00Z",
--  "action": "Resubmit with cache_preference=allow_partial for cached results"
--}
--}}}
++=== 4.3 Quality Gate Reason Codes ===
------
++**Gate 1 (Claim Validation):**
++* {{code}}OPINION_DETECTED{{/code}} - Subjective judgment without factual anchor
++* {{code}}COMPOUND_CLAIM{{/code}} - Multiple claims in one statement
++* {{code}}SUBJECTIVE{{/code}} - Value judgment, not verifiable fact
++* {{code}}TOO_VAGUE{{/code}} - Lacks specificity for evaluation
--== 4. Data Schemas ==
++**Gate 4 (Verdict Confidence):**
++* {{code}}LOW_CONFIDENCE{{/code}} - Confidence below threshold (<0.5)
++* {{code}}INSUFFICIENT_EVIDENCE{{/code}} - Too few sources to reach verdict
++* {{code}}CONTRADICTORY_EVIDENCE{{/code}} - Evidence conflicts without resolution
++* {{code}}NO_COUNTER_EVIDENCE{{/code}} - Contradiction search failed
--=== 4.1 Stage 1 Output: ClaimExtraction ===
++**Purpose:** Enable system improvement workflow (Observe → Analyze → Improve)
--{{{{
--  "job_id": "01J...ULID",
--  "stage": "stage1_extraction",
--  "article_metadata": {
--    "title": "Article title",
--    "source_url": "https://example.com/article",
--    "extracted_text_length": 5234,
--    "language": "en"
--  },
--  "claims": [
--    {
--      "claim_id": "C1",
--      "claim_text": "Original claim text from article",
--      "canonical_claim": "Normalized, deduplicated phrasing",
--      "claim_hash": "sha256:abc123...",
--      "is_central_to_thesis": true,
--      "claim_type": "causal",
--      "evaluability": "evaluable",
--      "risk_tier": "B",
--      "domain": "public_health"
--    }
--  ],
--  "article_thesis": "Main argument detected",
--  "cost": 0.003
--}
--}}}
++---
------
++== 5. Validation Rules (POC1 Enforcement) ==
--=== 4.5 Verdict Label Taxonomy ===
++|=Rule|=Requirement
++|**Mandatory Contradiction**|For every claim, the engine MUST search for "undermines" evidence. If none found, reasoning must explicitly state: "No counter-evidence found despite targeted search." Evidence must include at least 1 item with {{code}}stance ∈ {undermines, mixed, context_dependent}{{/code}} OR explicit note in {{code}}uncertainty_factors{{/code}}.
++|**Context-Aware Logic**|The {{code}}overall_verdict{{/code}} must prioritize central claims. If a {{code}}is_central_to_thesis=true{{/code}} claim is REFUTED, the overall article cannot be WELL-SUPPORTED. Central claims override verdict averaging.
++|**Author Identification**|All automated outputs MUST include {{code}}author_type: "AI/AKEL"{{/code}} or equivalent marker to distinguish AI-generated from human-reviewed content.
++|**Claim-to-Scenario Lifecycle**|In stateless POC1, Scenarios are **strictly children** of a specific Claim version. If a Claim's text changes, child Scenarios are part of that version's "snapshot." No scenario migration across versions.
--FactHarbor uses **three distinct verdict taxonomies** depending on analysis level:
++---
--==== 4.5.1 Scenario Verdict Labels (Stage 2) ====
++== 6. Deterministic Markdown Template ==
--Used for individual scenario verdicts within a claim.
++The system renders {{code}}report.md{{/code}} using a **fixed template** based on the JSON result (NOT generated by LLM).
--**Enum Values:**
++{{code language="markdown"}}
++# FactHarbor Analysis Report: {overall_verdict}
--* Highly Likely - Probability 0.85-1.0, high confidence
--* Likely - Probability 0.65-0.84, moderate-high confidence
--* Unclear - Probability 0.35-0.64, or low confidence
--* Unlikely - Probability 0.16-0.34, moderate-high confidence
--* Highly Unlikely - Probability 0.0-0.15, high confidence
--* Unsubstantiated - Insufficient evidence to determine probability
++**Job ID:** {job_id} | **Generated:** {timestamp_utc}
++**Model:** {llm_model} | **Cost:** ${estimated_cost_usd} | **Time:** {response_time_sec}s
--==== 4.5.2 Claim Verdict Labels (Rollup) ====
++---
--Used when summarizing a claim across all scenarios.
++## 1. Holistic Assessment (Experimental)
--**Enum Values:**
++**Main Thesis:** {main_thesis}
--* Supported - Majority of scenarios are Likely or Highly Likely
--* Refuted - Majority of scenarios are Unlikely or Highly Unlikely
--* Inconclusive - Mixed scenarios or majority Unclear/Unsubstantiated
++**Overall Verdict:** {overall_verdict}
--**Mapping Logic:**
++**Logic Quality Score:** {logic_quality_score}/1.0
--* If ≥60% scenarios are (Highly Likely | Likely) → Supported
--* If ≥60% scenarios are (Highly Unlikely | Unlikely) → Refuted
--* Otherwise → Inconclusive
++**Fallacies Detected:** {fallacies_detected}
--==== 4.5.3 Article Verdict Labels (Stage 3) ====
++**Reasoning:** {verdict_reasoning}
--Used for holistic article-level assessment.
++---
--**Enum Values:**
++## 2. Key Claims Analysis
--* WELL-SUPPORTED - Article thesis logically follows from supported claims
--* MISLEADING - Claims may be true but article commits logical fallacies
--* REFUTED - Central claims are refuted, invalidating thesis
--* UNCERTAIN - Insufficient evidence or highly mixed claim verdicts
++### [C1] {claim_text}
++* **Role:** {is_central_to_thesis ? "Central to thesis" : "Supporting claim"}
++* **Risk Tier:** {risk_tier} ({risk_tier_justification})
++* **Evaluability:** {evaluability}
--**Note:** Article verdict considers **claim centrality** (central claims override supporting claims).
++**Scenarios Explored:** {scenarios.length}
--==== 4.5.4 API Field Mapping ====
++#### Scenario: {scenario.context_title}
++* **Verdict:** {verdict.label} (Confidence: {verdict.confidence})
++* **Probability Range:** {verdict.probability_range[0]} - {verdict.probability_range[1]}
++* **Reasoning:** {verdict.reasoning}
--|=Level|=API Field|=Enum Name
--|Scenario|scenarios[].verdict.label|scenario_verdict_label
--|Claim|claims[].rollup_verdict (optional)|claim_verdict_label
--|Article|article_holistic_assessment.overall_verdict|article_verdict_label
++**Evidence:**
++* Supporting: {evidence.filter(e => e.stance == "supports").length} sources
++* Undermining: {evidence.filter(e => e.stance == "undermines").length} sources
++* Mixed: {evidence.filter(e => e.stance == "mixed").length} sources
------
++**Key Evidence:**
++* [{evidence[0].citation.title}]({evidence[0].citation.url}) - {evidence[0].stance}
--== 5. Cache Architecture ==
++---
--=== 5.1 Redis Cache Design ===
++## 3. Quality Assessment
--**Technology:** Redis 7.0+ (in-memory key-value store)
++**Quality Gates:**
++* Gate 1 (Claim Validation): {gate1_claim_validation}
++* Gate 4 (Verdict Confidence): {gate4_verdict_confidence}
++* Overall: {passed_all ? "PASS" : "FAIL"}
--**Cache Key Schema:**
++{if gate_fail_reasons.length > 0}
++**Failed Gates:**
++{gate_fail_reasons.map(r => `* ${r.gate}: ${r.explanation}`)}
++{/if}
--{{{claim:v1norm1:{language}:{sha256(canonical_claim)}
--}}}
++---
--**Example:**
++## 4. Limitations & Disclaimers
--{{{Claim (English): "COVID vaccines are 95% effective"
--Canonical: "covid vaccines are 95 percent effective"
--Language: "en"
--SHA256: abc123...def456
--Key: claim:v1norm1:en:abc123...def456
--}}}
++**System Limitations:**
++{limitations.map(l => `* ${l}`)}
--**Rationale:** Prevents cross-language collisions and enables per-language cache analytics.
++**Important Notes:**
++* This analysis is AI-generated and experimental (POC1)
++* Context-aware article verdict is being tested for accuracy
++* Human review recommended for high-risk claims (Tier A)
++* Cost: ${estimated_cost_usd} | Tokens: {input_tokens + output_tokens}
--**Data Structure:**
++**Methodology:** FactHarbor uses Claude 3.5 Sonnet to extract claims, generate scenarios, gather evidence (with mandatory contradiction search), and assess logical coherence between claims and article thesis.
--{{{SET claim:v1norm1:en:abc123...def456 '{...ClaimAnalysis JSON...}'
--EXPIRE claim:v1norm1:en:abc123...def456 7776000  # 90 days
--}}}
++---
------
++*Generated by FactHarbor POC1-v0.3 | [About FactHarbor](https://factharbor.org)*
++{{/code}}
--=== 5.1.1 Canonical Claim Normalization (v1) ===
++**Target Report Size:** 220-350 words (optimized for 2-minute read)
--The cache key depends on deterministic claim normalization. All implementations MUST follow this algorithm exactly.
++---
--**Algorithm: Canonical Claim Normalization v1**
++== 7. LLM Configuration (POC1) ==
--{{{def normalize_claim_v1(claim_text: str, language: str) -> str:
--    """
--    Normalizes claim to canonical form for cache key generation.
--    Version: v1norm1 (POC1)
--    """
--    import re
--    import unicodedata
--
--    # Step 1: Unicode normalization (NFC)
--    text = unicodedata.normalize('NFC', claim_text)
--
--    # Step 2: Lowercase
--    text = text.lower()
--
--    # Step 3: Remove punctuation (except hyphens in words)
--    text = re.sub(r'[^\w\s-]', '', text)
--
--    # Step 4: Normalize whitespace (collapse multiple spaces)
--    text = re.sub(r'\s+', ' ', text).strip()
--
--    # Step 5: Numeric normalization
--    text = text.replace('%', ' percent')
--    # Spell out single-digit numbers
--    num_to_word = {'0':'zero', '1':'one', '2':'two', '3':'three',
--                   '4':'four', '5':'five', '6':'six', '7':'seven',
--                   '8':'eight', '9':'nine'}
--    for num, word in num_to_word.items():
--        text = re.sub(rf'\b{num}\b', word, text)
--
--    # Step 6: Common abbreviations (English only in v1)
--    if language == 'en':
--        text = text.replace('covid-19', 'covid')
--        text = text.replace('u.s.', 'us')
--        text = text.replace('u.k.', 'uk')
--
--    # Step 7: NO entity normalization in v1
--    # (Trump vs Donald Trump vs President Trump remain distinct)
--
--    return text
++|=Parameter|=Value|=Notes
++|**Provider**|Anthropic|Primary provider for POC1
++|**Model**|{{code}}claude-3-5-sonnet-20241022{{/code}}|Current production model
++|**Future Model**|{{code}}claude-sonnet-4-20250514{{/code}}|When available (architecture supports)
++|**Token Budget**|50K-80K per analysis|Input + output combined (varies by article length)
++|**Estimated Cost**|$0.10-0.30 per article|Based on Sonnet 3.5 pricing ($3/M input, $15/M output)
++|**Prompt Strategy**|Single-pass per stage|Not multi-turn; structured JSON output with schema validation
++|**Chain-of-Thought**|Yes|For verdict reasoning and holistic assessment
++|**Few-Shot Examples**|Yes|For claim extraction and scenario generation
--# Version identifier (include in cache namespace)
--CANONICALIZER_VERSION = "v1norm1"
--}}}
++=== 7.1 Token Budgets by Stage ===
--**Cache Key Formula (Updated):**
++|=Stage|=Approximate Output Tokens
++|Claim Extraction|~4,000 (10 claims × ~400 tokens)
++|Scenario Generation|~3,000 per claim (3 scenarios × ~1,000 tokens)
++|Evidence Synthesis|~2,000 per scenario
++|Verdict Generation|~1,000 per scenario
++|Holistic Assessment|~500 (context-aware summary)
--{{{language = "en"
--canonical = normalize_claim_v1(claim_text, language)
--cache_key = f"claim:{CANONICALIZER_VERSION}:{language}:{sha256(canonical)}"
++**Total:** 50K-80K tokens per article (input + output)
--Example:
--  claim: "COVID-19 vaccines are 95% effective"
--  canonical: "covid vaccines are 95 percent effective"
--  sha256: abc123...def456
--  key: "claim:v1norm1:en:abc123...def456"
--}}}
++=== 7.2 API Integration ===
--**Cache Metadata MUST Include:**
++**Anthropic Messages API:**
++* Endpoint: {{code}}https://api.anthropic.com/v1/messages{{/code}}
++* Authentication: API key via {{code}}x-api-key{{/code}} header
++* Model parameter: {{code}}"model": "claude-3-5-sonnet-20241022"{{/code}}
++* Max tokens: {{code}}"max_tokens": 4096{{/code}} (per stage)
--{{{{
--  "canonical_claim": "covid vaccines are 95 percent effective",
--  "canonicalizer_version": "v1norm1",
--  "language": "en",
--  "original_claim_samples": ["COVID-19 vaccines are 95% effective"]
--}
--}}}
++**No LangChain/LangGraph needed** for POC1 simplicity - direct SDK calls suffice.
--**Version Upgrade Path:**
++---
--* v1norm1 → v1norm2: Cache namespace changes, old keys remain valid until TTL
--* v1normN → v2norm1: Major version bump, invalidate all v1 caches
++== 8. Cross-References (xWiki) ==
------
++This API specification implements requirements from:
--=== 5.1.2 Copyright & Data Retention Policy ===
++* **[[POC Requirements>>Test.FactHarbor.Specification.POC.Requirements]]**
++** FR-POC-1 through FR-POC-6 (POC1-specific functional requirements)
++** NFR-POC-1 through NFR-POC-3 (quality gates lite: Gates 1 & 4 only)
++** Section 2.1: Analysis Summary (Context-Aware) component specification
++** Section 10.3: Prompt structure for claim extraction and verdict synthesis
--**Evidence Excerpt Storage:**
++* **[[Article Verdict Problem>>Test.FactHarbor.Specification.POC.Article-Verdict-Problem]]**
++** Complete investigation of 7 approaches to article-level verdicts
++** Approach 1 (Single-Pass Holistic Analysis) chosen for POC1
++** Experimental feature testing plan (30 articles, ≥70% accuracy target)
++** Decision framework for POC2 implementation
--To comply with copyright law and fair use principles:
++* **[[Requirements>>Test.FactHarbor.Specification.Requirements.WebHome]]**
++** FR4 (Analysis Summary) - enhanced with context-aware capability
++** FR7 (Verdict Calculation) - probability ranges + confidence scores
++** NFR11 (Quality Gates) - POC1 implements Gates 1 & 4; Gates 2 & 3 in POC2
--**What We Store:**
++* **[[Architecture>>Test.FactHarbor.Specification.Architecture.WebHome]]**
++** POC1 simplified architecture (stateless, single AKEL orchestration call)
++** Data persistence minimized (job outputs only, no database required)
++** Deferred complexity (no Elasticsearch, TimescaleDB, Federation until metrics justify)
--* **Metadata only:** Title, author, publisher, URL, publication date
--* **Short excerpts:** Max 25 words per quote, max 3 quotes per evidence item
--* **Summaries:** AI-generated bullet points (not verbatim text)
--* **No full articles:** Never store complete article text beyond job processing
++* **[[Data Model>>Test.FactHarbor.Specification.Data Model.WebHome]]**
++** Evidence structure (source, stance, reliability rating)
++** Scenario boundaries (time, geography, population, conditions)
++** Claim types and evaluability taxonomy
++** Source Track Record System (Section 1.3) - temporal separation
--**Total per Cached Claim:**
++* **[[Requirements Roadmap Matrix>>Test.FactHarbor.Roadmap.Requirements-Roadmap-Matrix.WebHome]]**
++** POC1 requirement mappings and phase assignments
++** Context-aware analysis as POC1 experimental feature
++** POC2 enhancement path (Gates 2 & 3, evidence deduplication)
--* Scenarios: 2 per claim
--* Evidence items: 6 per scenario (12 total)
--* Quotes: 3 per evidence × 25 words = 75 words per item
--* **Maximum stored verbatim text:** ~~900 words per claim (12 × 75)
++---
--**Retention:**
++== 9. Implementation Notes (POC1) ==
--* Cache TTL: 90 days
--* Job outputs: 24 hours (then archived or deleted)
--* No persistent full-text article storage
++=== 9.1 Recommended Tech Stack ===
--**Rationale:**
++* **Framework:** Next.js 14+ with App Router (TypeScript) - Full-stack in one codebase
++* **Rationale:** API routes + React UI unified, Vercel deployment-ready, similar to C# in structure
++* **Storage:** Filesystem JSON files (no database needed for POC1)
++* **Queue:** In-memory queue or Redis (optional for concurrency)
++* **URL Extraction:** Jina AI Reader API (primary), trafilatura (fallback)
++* **Deployment:** Vercel, AWS Lambda, or similar serverless
--* Short excerpts for citation = fair use
--* Summaries are transformative (not copyrightable)
--* Limited retention (90 days max)
--* No commercial republication of excerpts
++=== 9.2 POC1 Simplifications ===
--**DMCA Compliance:**
++* **No database required:** Job metadata + outputs stored as JSON files ({{code}}jobs/{job_id}.json{{/code}}, {{code}}results/{job_id}.json{{/code}})
++* **No user authentication:** Optional API key validation only (env var: {{code}}FACTHARBOR_API_KEY{{/code}})
++* **Single-instance deployment:** No distributed processing, no worker pools
++* **Synchronous LLM calls:** No streaming in POC1 (entire response before returning)
++* **Job retention:** 24 hours default (configurable: {{code}}JOB_RETENTION_HOURS{{/code}})
++* **Rate limiting:** Simple IP-based (optional) - no complex billing
--* Cache invalidation endpoint available for rights holders
--* Contact: dmca@factharbor.org
++=== 9.3 Estimated Costs (Per Analysis) ===
------
++**LLM API costs (Claude 3.5 Sonnet):**
++* Input: $3.00 per million tokens
++* Output: $15.00 per million tokens
++* **Per article:** $0.10-0.30 (varies by length, 5-10 claims typical)
--== Summary ==
++**Web search costs (optional):**
++* Using external search API (Tavily, Brave): $0.01-0.05 per analysis
++* POC1 can use free search APIs initially
--This WYSIWYG preview shows the **structure and key sections** of the 1,515-line API specification.
++**Infrastructure costs:**
++* Vercel hobby tier: Free for POC
++* AWS Lambda: ~$0.001 per request
++* **Total infra:** <$0.01 per analysis
--**Full specification includes:**
++**Total estimated cost:** ~$0.15-0.35 per analysis ✅ Meets <$0.35 target
--* Complete API endpoints (7 total)
--* All data schemas (ClaimExtraction, ClaimAnalysis, HolisticAssessment, Complete)
--* Quality gates & validation rules
--* LLM configuration for all 3 stages
--* Implementation notes with code samples
--* Testing strategy
--* Cross-references to other pages
++=== 9.4 Estimated Timeline (AI-Assisted) ===
--**The complete specification is available in:**
++**With Cursor IDE + Claude API:**
++* Day 1-2: API scaffolding + job queue
++* Day 3-4: LLM integration + prompt engineering
++* Day 5-6: Evidence retrieval + contradiction search
++* Day 7: Report templates + testing with 30 articles
++* **Total:** 5-7 days for working POC1
--* FactHarbor_POC1_API_and_Schemas_Spec_v0_4_1_PATCHED.md (45 KB standalone)
--* Export files (TEST/PRODUCTION) for xWiki import
++**Manual coding (no AI assistance):**
++* Estimate: 15-20 days
++
++=== 9.5 First Prompt for AI Code Generation ===
++
++{{code}}
++Based on the FactHarbor POC1 API & Schemas Specification (v0.3), generate a Next.js 14 TypeScript application with:
++
++1. API routes implementing the 7 endpoints specified in Section 3
++2. AnalyzeRequest/AnalysisResult types matching schemas in Sections 4-5
++3. Anthropic Claude 3.5 Sonnet integration for:
++   - Claim extraction (with central/supporting marking)
++   - Scenario generation
++   - Evidence synthesis (with mandatory contradiction search)
++   - Verdict generation
++   - Holistic assessment (article-level credibility)
++4. Job-based async execution with progress tracking (7 pipeline stages)
++5. Quality Gates 1 & 4 from NFR11 implementation
++6. Mandatory contradiction search enforcement (Section 5)
++7. Context-aware analysis (experimental) as specified
++8. Filesystem-based job storage (no database)
++9. Markdown report generation from JSON templates (Section 6)
++
++Use the validation rules from Section 5 and error codes from Section 2.1.1.
++Target: <$0.35 per analysis, <2 minutes processing time.
++{{/code}}
++
++---
++
++== 10. Testing Strategy (POC1) ==
++
++=== 10.1 Test Dataset (30 Articles) ===
++
++**Category 1: Straightforward Factual (10 articles)**
++* Purpose: Baseline accuracy
++* Example: "WHO report on global vaccination rates"
++* Expected: High claim accuracy, straightforward verdict
++
++**Category 2: Accurate Claims, Questionable Conclusions (10 articles)** ⭐ **Context-Aware Test**
++* Purpose: Test holistic assessment capability
++* Example: "Coffee cures cancer" (true premises, false conclusion)
++* Expected: Individual claims TRUE, article verdict MISLEADING
++
++**Category 3: Mixed Accuracy (5 articles)**
++* Purpose: Test nuance handling
++* Example: Articles with some true, some false claims
++* Expected: Scenario-level differentiation
++
++**Category 4: Low-Quality Claims (5 articles)**
++* Purpose: Test quality gates
++* Example: Opinion pieces, compound claims
++* Expected: Gate 1 failures, rejection or draft-only mode
++
++=== 10.2 Success Metrics ===
++
++**Quality Metrics:**
++* Hallucination rate: <5% (target: <3%)
++* Context-aware accuracy: ≥70% (experimental - key POC1 goal)
++* False positive rate: <15%
++* Mandatory contradiction search: 100% compliance
++
++**Performance Metrics:**
++* Processing time: <2 minutes per article (standard depth)
++* Cost per analysis: <$0.35
++* API uptime: >99%
++* LLM API error rate: <1%
++
++**See:** [[POC1 Roadmap>>Test.FactHarbor.Roadmap.POC1.WebHome]] Section 11 for complete success criteria and testing methodology.
++
++---
++
++**End of Specification - FactHarbor POC1 API v0.3**
++
++**Ready for xWiki import and AI-assisted implementation!** 🚀
++

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