feat(adapta-web): add tool-call translation via webTools prompt injection

[oyi77]

Description

Adapta web API has no native function calling support. This PR adds tool-call translation using the same pattern as deepseek-web (#2820), qwen-web (#3252), ddg-web (#3253), and blackbox-web (#3254).

How it works

1. Request side: Serialize OpenAI tools[] into a system prompt instruction via serializeToolsToPrompt(). Injects into the buildAdaptaMessages system instruction chain.

2. Response side: Parse <tool>{...}</tool> blocks from model text response via parseToolCallsFromText(). Returns proper OpenAI tool_calls format.

Files Changed

• open-sse/executors/adapta-web.ts — +40 lines

Tests

All 5 existing tests pass.

[gemini-code-assist]

Code Review

This pull request introduces tool-calling support for the Adapta executor in open-sse/executors/adapta-web.ts by serializing requested tools into a system prompt and parsing tool calls from the response text. The reviewer feedback highlights three key areas for improvement: first, streaming mode must be disabled when tools are requested to prevent raw tool blocks from breaking client functionality; second, the usage field should be added to the tool-call response to maintain consistency and avoid client parsing errors; and third, corresponding unit tests must be added to comply with the repository style guide's requirement for testing production code changes.

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[gemini-code-assist]

When hasTools is true, the executor should force non-streaming mode (i.e., stream = false) because transformStream does not support parsing tool calls from the stream. If streaming is kept active, the client will receive raw <tool>...</tool> text blocks instead of proper tool_calls structures, which will break tool-calling functionality.

To fix this, you can reassign stream = false when hasTools is true, or introduce an effectiveStream variable and use it in place of stream at line 454.

[gemini-code-assist]

According to the Repository Style Guide (Rule 9), you must always include tests when changing production code under open-sse/. Please add or update the corresponding unit tests (e.g., in tests/) to cover the new tool-call translation logic for the Adapta executor.

References

1. Always include tests when changing production code (src/, open-sse/, electron/, bin/). ^(link)

[gemini-code-assist]

The returned chat completion response for tool calls is missing the usage field. Some clients/SDKs expect this field to be present and may fail to parse the response if it is missing. Please add the usage field to maintain consistency with the other completion responses in this executor.

          response: new Response(
            JSON.stringify({
              id: `chatcmpl-adp-${Date.now()}`,
              object: "chat.completion",
              created: Math.floor(Date.now() / 1000),
              model,
              choices: [
                {
                  index: 0,
                  message: { role: "assistant", content: null, tool_calls: toolCalls },
                  finish_reason: "tool_calls"
                }
              ],
              usage: { prompt_tokens: 0, completion_tokens: 0, total_tokens: 0 }
            }),
            { status: 200, headers: { "Content-Type": "application/json" } }
          ),

[oyi77]

Superseded by #3259 (consolidated PR with shared helpers)