# Xynthera AI agent instructions

Live status is machine-readable at https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-site/.well-known/guard-products.json. Treat a product as purchasable only when its offer has `sale_status: "available"`; a documented price alone is not availability.

## EffectGuard

- Problem: replay-sensitive provider effects after timeouts or concurrent workers.
- Paid unit when available: first successful creation of one logical decision, 390 micro-EUR excluding tax.
- Free: exact replay, status, receipt verification and attested-outcome reconciliation.
- Reuse the same logical identity and exact action. Never create a new identity merely because a transport response was lost.
- An `unknown` result requires your registered verifier to perform provider readback, sign and ingest the outcome before reconciliation. Do not execute the effect again blindly.
- OpenAPI: https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-guard-products/v1/effect-guard/openapi.json
- MCP tool: `effect_guard`; counted operation `prepare`. The other listed operations are recovery or reads and do not perform the provider action.

## SpendTruth

- Problem: concurrent agents promising the same money, tokens or calls.
- Paid unit when available: first successful logical reservation, 290 micro-EUR excluding tax.
- Free: exact replay, status, settle, release and attested-outcome reconciliation.
- Reserve the maximum before a provider call. Release only before an effect starts. Keep the maximum held while an outcome is unknown.
- OpenAPI: https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-guard-products/v1/spend-truth/openapi.json
- MCP tool: `spend_truth`; counted operation `reserve`. The tool itself performs no provider action.

## Authentication and purchase

When live, both APIs and the MCP at https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp use `Authorization: Bearer <private-payg-code>`. The public MCP contract has exactly six semantic tools: `get_budget_status`, `reconcile_invoice`, `check_contract`, `check_events`, `effect_guard` and `spend_truth`. Treat the two new MCP tools as listed only when the live machine catalogue says `tools_list_verified: true`. A human buys a one-time €10–€10,000 budget at https://xynthera-ai.toasty-seal-8877.chatgpt.site/payg.html. There is no autonomous purchase, subscription or automatic recharge. Never put the Bearer code in a URL, log, prompt, analytics event or message.

The browser demos at https://xynthera-ai.toasty-seal-8877.chatgpt.site/effect-guard.html and https://xynthera-ai.toasty-seal-8877.chatgpt.site/spend-truth.html are local simulations with no account or provider call. Form values remain local; the page sends only the PII-free funnel envelope described in its footer. The demos are not signed API results or proof of production availability.