X-Git-Url: https://git.giacomolli.uk/onechat/blobdiff_plain/baf7a940be8927278e3b4b87e7366cebfc16532f..900ec0e7dad7a913190fcef9016e53495de9bdf8:/model.go

diff --git a/model.go b/model.go
index 04b1556..7c85643 100644
--- a/model.go
+++ b/model.go
@@ -138,9 +138,11 @@ func (k ModelAPIKey) Authorize(ctx context.Context, header http.Header) error {
 // ChatGPT backend and the OpenAI API take the same request body and differ only
 // in the URL and the credentials. Every call sends the fixed cache key of the
 // agent, so the turns and the compactions of the agent share one prompt cache.
-// The ChatGPT backend caches only with the key in the session_id header, so a
-// call to it sends the key there and in the body. Every call is recorded in the
-// usage file.
+// A call of a subagent sends the key of the agent with "-" and the name of the
+// subagent, so that the calls of a subagent do not share a cache entry with the
+// calls of the agent that run at the same time. The ChatGPT backend caches only
+// with the key in the session_id header, so a call to it sends the key there
+// and in the body. Every call is recorded in the usage file.
 //
 // The request never holds max_output_tokens or metadata, because the ChatGPT
 // backend refuses them. It sets store to false, so the client sends the whole
@@ -166,6 +168,16 @@ func (c *ModelClient) LimitReached() bool {
 	return c.limit > 0 && c.calls.Load() >= c.limit
 }
 
+// CallLimit returns the configured call limit, or zero for no limit.
+func (c *ModelClient) CallLimit() int64 {
+	return c.limit
+}
+
+// UsagePath returns the file that records the calls of this client.
+func (c *ModelClient) UsagePath() string {
+	return c.usage.path
+}
+
 // Create sends the call and reads its event stream to the end. Over the call
 // limit it sends nothing and returns errModelCallLimit.
 func (c *ModelClient) Create(ctx context.Context, request ModelRequest) (ModelResponse, error) {
@@ -173,6 +185,11 @@ func (c *ModelClient) Create(ctx context.Context, request ModelRequest) (ModelRe
 		return ModelResponse{}, errModelCallLimit
 	}
 
+	cacheKey := c.cacheKey
+	if request.Agent != "" {
+		cacheKey += "-" + request.Agent
+	}
+
 	body, err := json.Marshal(ModelRequestBody{
 		Model:        request.Model,
 		Instructions: request.Instructions,
@@ -184,7 +201,7 @@ func (c *ModelClient) Create(ctx context.Context, request ModelRequest) (ModelRe
 		Store:          false,
 		Stream:         true,
 		Include:        []string{"reasoning.encrypted_content"},
-		PromptCacheKey: c.cacheKey,
+		PromptCacheKey: cacheKey,
 	})
 	if err != nil {
 		return ModelResponse{}, fmt.Errorf("encode request: %w", err)
@@ -204,7 +221,7 @@ func (c *ModelClient) Create(ctx context.Context, request ModelRequest) (ModelRe
 
 	_, chatgpt := c.auth.(*ChatGPTAuth)
 	if chatgpt {
-		httpRequest.Header.Set("session_id", c.cacheKey)
+		httpRequest.Header.Set("session_id", cacheKey)
 	}
 
 	start := time.Now()
@@ -218,6 +235,7 @@ func (c *ModelClient) Create(ctx context.Context, request ModelRequest) (ModelRe
 	}
 
 	record.Turn = request.Turn
+	record.Agent = request.Agent
 	response, err := c.send(httpRequest, &record)
 	if err != nil {
 		record.Error = err.Error()
@@ -302,8 +320,10 @@ type ModelOutputItem struct {
 // ModelRequest is one model call. Input holds the input items in order, such as
 // modelUserMessage values or output items of an earlier response. Node names
 // the node that a compaction builds, or is nil. Turn names the request of a
-// turn: first or next. Node and Turn go only to the usage file, never to the
-// endpoint.
+// turn: first or next. Agent names the subagent that makes the call, or is
+// empty for a call of the agent itself. Node, Turn, and Agent go to the usage
+// file, never to the endpoint as fields. Agent also gives the call the cache
+// key of its subagent.
 type ModelRequest struct {
 	Model        string
 	Effort       string
@@ -312,6 +332,7 @@ type ModelRequest struct {
 	Input        []any
 	Node         *NodeKey
 	Turn         string
+	Agent        string
 }
 
 // ModelResponse is the result of a model call. Output holds the output items as
@@ -342,14 +363,16 @@ type ModelReasoning struct {
 // ModelUsageRecord is one line of usage.jsonl. Date is the start of the call,
 // and Seconds its length. Node is the node [l, i] of a compaction. Status is
 // the HTTP status, or 0 when no response came. TextBytes is the size of the
-// text of the reply. Turn names the request of a turn. Quota holds the
-// x-codex-* headers of the response, without the turn state.
+// text of the reply. Turn names the request of a turn. Agent names the subagent
+// of the call. Quota holds the x-codex-* headers of the response, without the
+// turn state.
 type ModelUsageRecord struct {
 	Date         string            `json:"date"`
 	Seconds      float64           `json:"seconds"`
 	Model        string            `json:"model"`
 	Node         *[2]int           `json:"node,omitempty"`
 	Turn         string            `json:"turn,omitempty"`
+	Agent        string            `json:"agent,omitempty"`
 	Status       int               `json:"status"`
 	InputTokens  int               `json:"input_tokens"`
 	CachedTokens int               `json:"cached_tokens"`