fix(providers): preserve all reasoning_details types for OpenRouter models

OpenRouter models like Kimi K2.5 return reasoning_details with type
reasoning.text at message level. The pi-ai library only handled
reasoning.encrypted type. This patch stores all reasoning_details
and passes them back in subsequent requests.

Fixes multi-turn tool calls with Kimi K2.5 and similar models.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package.json

@@ -246,6 +246,9 @@
       "@sinclair/typebox": "0.34.47",
       "hono": "4.11.4",
       "tar": "7.5.4"
+    },
+    "patchedDependencies": {
+      "@mariozechner/pi-ai@0.49.3": "patches/@mariozechner__pi-ai@0.49.3.patch"
     }
   },
   "vitest": {

patches/@mariozechner__pi-ai@0.49.3.patch

@@ -0,0 +1,58 @@
+diff --git a/dist/providers/openai-completions.js b/dist/providers/openai-completions.js
+index c4b291d86ce40b2df319c439263d16d67592d22e..449da02d0d2c85309979e392909df5d3fb2ad083 100644
+--- a/dist/providers/openai-completions.js
++++ b/dist/providers/openai-completions.js
+@@ -228,7 +228,13 @@ export const streamOpenAICompletions = (model, context, options) => {
+                     }
+                     const reasoningDetails = choice.delta.reasoning_details;
+                     if (reasoningDetails && Array.isArray(reasoningDetails)) {
++                        // Store ALL reasoning_details for OpenRouter compatibility (not just encrypted)
++                        if (!output._rawReasoningDetails) {
++                            output._rawReasoningDetails = [];
++                        }
+                         for (const detail of reasoningDetails) {
++                            output._rawReasoningDetails.push(detail);
++                            // Also handle encrypted type tied to tool calls (existing behavior)
+                             if (detail.type === "reasoning.encrypted" && detail.id && detail.data) {
+                                 const matchingToolCall = output.content.find((b) => b.type === "toolCall" && b.id === detail.id);
+                                 if (matchingToolCall) {
+@@ -500,19 +506,27 @@ function convertMessages(model, context, compat) {
+                         arguments: JSON.stringify(tc.arguments),
+                     },
+                 }));
+-                const reasoningDetails = toolCalls
+-                    .filter((tc) => tc.thoughtSignature)
+-                    .map((tc) => {
+-                    try {
+-                        return JSON.parse(tc.thoughtSignature);
+-                    }
+-                    catch {
+-                        return null;
++                // First check for raw reasoning_details stored on the message (OpenRouter models like Kimi)
++                const rawDetails = msg._rawReasoningDetails;
++                if (rawDetails && Array.isArray(rawDetails) && rawDetails.length > 0) {
++                    assistantMsg.reasoning_details = rawDetails;
++                }
++                else {
++                    // Fall back to extracting from tool call thoughtSignatures (encrypted type)
++                    const reasoningDetails = toolCalls
++                        .filter((tc) => tc.thoughtSignature)
++                        .map((tc) => {
++                        try {
++                            return JSON.parse(tc.thoughtSignature);
++                        }
++                        catch {
++                            return null;
++                        }
++                    })
++                        .filter(Boolean);
++                    if (reasoningDetails.length > 0) {
++                        assistantMsg.reasoning_details = reasoningDetails;
+                     }
+-                })
+-                    .filter(Boolean);
+-                if (reasoningDetails.length > 0) {
+-                    assistantMsg.reasoning_details = reasoningDetails;
+                 }
+             }
+             // Skip assistant messages that have no content and no tool calls.

pnpm-lock.yaml

@@ -9,6 +9,11 @@ overrides:
   hono: 4.11.4
   tar: 7.5.4
 
+patchedDependencies:
+  '@mariozechner/pi-ai@0.49.3':
+    hash: 8fada8af40beb6c2780b3adec72505288272a5df0ec6227b710caef6afb1dc32
+    path: patches/@mariozechner__pi-ai@0.49.3.patch
+
 importers:
 
   .:
@@ -45,7 +50,7 @@ importers:
         version: 0.49.3(ws@8.19.0)(zod@4.3.6)
       '@mariozechner/pi-ai':
         specifier: 0.49.3
-        version: 0.49.3(ws@8.19.0)(zod@4.3.6)
+        version: 0.49.3(patch_hash=8fada8af40beb6c2780b3adec72505288272a5df0ec6227b710caef6afb1dc32)(ws@8.19.0)(zod@4.3.6)
       '@mariozechner/pi-coding-agent':
         specifier: 0.49.3
         version: 0.49.3(ws@8.19.0)(zod@4.3.6)
@@ -6989,7 +6994,7 @@ snapshots:
 
   '@mariozechner/pi-agent-core@0.49.3(ws@8.19.0)(zod@4.3.6)':
     dependencies:
-      '@mariozechner/pi-ai': 0.49.3(ws@8.19.0)(zod@4.3.6)
+      '@mariozechner/pi-ai': 0.49.3(patch_hash=8fada8af40beb6c2780b3adec72505288272a5df0ec6227b710caef6afb1dc32)(ws@8.19.0)(zod@4.3.6)
       '@mariozechner/pi-tui': 0.49.3
     transitivePeerDependencies:
       - '@modelcontextprotocol/sdk'
@@ -7000,7 +7005,7 @@ snapshots:
       - ws
       - zod
 
-  '@mariozechner/pi-ai@0.49.3(ws@8.19.0)(zod@4.3.6)':
+  '@mariozechner/pi-ai@0.49.3(patch_hash=8fada8af40beb6c2780b3adec72505288272a5df0ec6227b710caef6afb1dc32)(ws@8.19.0)(zod@4.3.6)':
     dependencies:
       '@anthropic-ai/sdk': 0.71.2(zod@4.3.6)
       '@aws-sdk/client-bedrock-runtime': 3.972.0
@@ -7027,7 +7032,7 @@ snapshots:
       '@mariozechner/clipboard': 0.3.0
       '@mariozechner/jiti': 2.6.5
       '@mariozechner/pi-agent-core': 0.49.3(ws@8.19.0)(zod@4.3.6)
-      '@mariozechner/pi-ai': 0.49.3(ws@8.19.0)(zod@4.3.6)
+      '@mariozechner/pi-ai': 0.49.3(patch_hash=8fada8af40beb6c2780b3adec72505288272a5df0ec6227b710caef6afb1dc32)(ws@8.19.0)(zod@4.3.6)
       '@mariozechner/pi-tui': 0.49.3
       '@silvia-odwyer/photon-node': 0.3.4
       chalk: 5.6.2
@@ -9104,7 +9109,7 @@ snapshots:
       '@line/bot-sdk': 10.6.0
       '@lydell/node-pty': 1.2.0-beta.3
       '@mariozechner/pi-agent-core': 0.49.3(ws@8.19.0)(zod@4.3.6)
-      '@mariozechner/pi-ai': 0.49.3(ws@8.19.0)(zod@4.3.6)
+      '@mariozechner/pi-ai': 0.49.3(patch_hash=8fada8af40beb6c2780b3adec72505288272a5df0ec6227b710caef6afb1dc32)(ws@8.19.0)(zod@4.3.6)
       '@mariozechner/pi-coding-agent': 0.49.3(ws@8.19.0)(zod@4.3.6)
       '@mariozechner/pi-tui': 0.49.3
       '@mozilla/readability': 0.6.0