#+TITLE: SKILL: OpenRouter Provider Agent (Universal Literate Note)
#+ID: skill-provider-openrouter
#+STARTUP: content
#+FILETAGS: :llm:provider:openrouter:unified:psf:

* Overview
The **OpenRouter Provider Agent** acts as a unified gateway to hundreds of LLMs. It provides flexibility by dynamically switching between models based on intelligence tiers while maintaining architectural alignment.

* Phase A: Demand (PRD)
:PROPERTIES:
:STATUS: FROZEN
:END:

** 1. Purpose
Define the interface for unified communication with the OpenRouter API.

** 2. User Needs
- **Abstraction:** OpenAI-compatible interface for all OpenRouter models.
- **Dynamic Routing:** Support for intelligence tiers (:POWERFUL, :FAST, :FREE).
- **Resilience:** Leverage auto-routing fallbacks.
- **Transparency:** Proper identification via Referer and Title headers.

** 3. Success Criteria
*** TODO Tiered Model Resolution
*** TODO OpenAI-Compatible Payload Generation
*** TODO Header Compliance Verification

* Phase B: Blueprint (PROTOCOL)
:PROPERTIES:
:STATUS: SIGNED
:END:

** 1. Architectural Intent
Interfaces for executing neural completion requests via the unified OpenRouter gateway.

** 2. Semantic Interfaces
#+begin_src lisp
(defun execute-openrouter-request (prompt system-prompt)
  "Executes a completion request via the OpenRouter API.")

(defun get-openrouter-models ()
  "Returns a curated list of models across tiers.")
#+end_src

* Phase D: Build (Implementation)

** Request Execution
#+begin_src lisp :tangle projects/org-skill-provider-openrouter/src/provider-logic.lisp
(defun execute-openrouter-request (prompt system-prompt)
  (let ((api-key (uiop:getenv "OPENROUTER_API_KEY")))
    (unless api-key (return-from execute-openrouter-request "ERROR: Key missing"))
    (let ((model (get-tiered-model :fast "meta-llama/llama-3-70b-instruct")))
      ;; Physical API call logic (mocked for refactor)
      (format nil "Executing OpenRouter request on ~a" model))))
#+end_src

** Model Discovery
#+begin_src lisp :tangle projects/org-skill-provider-openrouter/src/provider-logic.lisp
(defun get-openrouter-models ()
  '((:id "anthropic/claude-3.5-sonnet" :context "200k" :tier :powerful)
    (:id "google/gemini-flash-1.5" :context "1m" :tier :fast)
    (:id "openrouter/auto" :context "varying" :tier :free)))
#+end_src

* Registration
#+begin_src lisp
(defskill :skill-provider-openrouter
  :priority 100
  :trigger (lambda (context) nil)
  :neuro (lambda (context) nil)
  :symbolic (lambda (action context) action))
#+end_src