Update GPT-5.4 prompt progress guidance

[dileepyavan]

Cherry-picked from Dileepy/gpt_5.4 onto main.

Changes:

• Update GPT-5.4 prompt guidance for intermediary/intermediate progress updates across prompt variants.

Cherry-picked commits:

• 4411b4198d2 updating prompt for intermediatery updates
• 07c216bf0f0 updating prompt for intermediatery updates

[github-actions]

Screenshot Changes

Base: d0b379e4 Current: e34353e5

Changed (1)

chat/aiCustomizations/aiCustomizationManagementEditor/McpBrowseMode/Light

Before	After

[Copilot]

Pull request overview

This PR updates the GPT-5.4 prompt variants’ guidance so that an initial intermediary/progress update is only required when the task will require calling tools, aligning behavior across prompt variants.

Changes:

• Update “start with an intermediary update” rule to apply conditionally (only for tool-calling tasks) across GPT-5.4 prompt variants.
• Minor wording/grammar adjustment in HiddenModelB prompt guidance (“an intermediary”).

Show a summary per file

File	Description
extensions/copilot/src/extension/prompts/node/agent/openai/hiddenModelBPrompt.tsx	Clarifies intermediary update phrasing in the prompt guidance.
extensions/copilot/src/extension/prompts/node/agent/openai/gpt54Prompt.tsx	Makes the initial intermediary update requirement conditional on tool usage.
extensions/copilot/src/extension/prompts/node/agent/openai/gpt54LargePrompt.tsx	Mirrors the conditional intermediary update requirement in the large prompt variant.
extensions/copilot/src/extension/prompts/node/agent/openai/gpt54ConcisePrompt.tsx	Mirrors the conditional intermediary update requirement in the concise prompt variant.

Copilot's findings

Comments suppressed due to low confidence (3)

extensions/copilot/src/extension/prompts/node/agent/openai/gpt54ConcisePrompt.tsx:150

• Typo: "such at" should be "such as" ("Avoid ... using starters such as "Got it -"").

				- You must always start with an intermediary update before any content in the `analysis` channel if the task will require calling tools. The user update should acknowledge the request and explain your first step. Avoid commenting on the request or using starters such at "Got it -" or "Understood -" etc.<br />

extensions/copilot/src/extension/prompts/node/agent/openai/gpt54Prompt.tsx:139

• Typo: "such at" should be "such as" ("Avoid ... using starters such as "Got it -"").

				- You must always start with an intermediary update before any content in the `analysis` channel if the task will require calling tools. The user update should acknowledge the request and explain your first step. Avoid commenting on the request or using starters such at "Got it -" or "Understood -" etc.<br />

extensions/copilot/src/extension/prompts/node/agent/openai/gpt54LargePrompt.tsx:179

• Typo: "such at" should be "such as" ("Avoid ... using starters such as "Got it -"").

				- You must always start with an intermediary update before any content in the `analysis` channel if the task will require calling tools. The user update should acknowledge the request and explain your first step. Avoid commenting on the request or using starters such at "Got it -" or "Understood -" etc.<br />

• Files reviewed: 4/4 changed files
• Comments generated: 3