Fix DefaultToolCallFormatter godoc: it groups repeated names, not counts

[PratikDhanave (PratikDhanave)]

DefaultToolCallFormatter (agent/compaction/toolresult.go) doc says its output includes "tool names, results, and deduplication counts for repeated tool names".

The function emits no numeric counts: it lists each tool name once (orderedNames) with its results grouped beneath on - <result> lines (e.g. [Tool Calls]\nsearch:\n - found 3 docs). Corrected the comment to describe the grouping instead of non-existent counts. Doc-only change.

[Copilot]

🟢 Approval recommended

Documentation-only correction with no unresolved issues.

Pull request overview

Updates DefaultToolCallFormatter documentation to accurately describe grouped tool results rather than numeric counts.

Changes:

• Clarifies that each tool name appears once.
• Documents grouped results beneath each tool name.

File summaries

File	Description
agent/compaction/toolresult.go	Corrected formatter documentation.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 0
• Review effort level: Lite

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[github-actions]

Scope: internal-only (documentation)
Changed Go contract: None — only the godoc comment on DefaultToolCallFormatter (agent/compaction/toolresult.go) was edited to accurately describe existing behavior (grouping repeated tool names instead of claiming non-existent deduplication counts). No exported signature, type, default, or runtime behavior changed.
Upstream evidence reviewed: Not applicable — no Go code, defaults, or behavior changed, so there is no cross-repo contract to compare against .NET (dotnet/src/Microsoft.Agents.AI/) or Python (python/packages/core/agent_framework/).
Result: out of scope for parity review (doc-only fix, no public API or behavior change).

No public-api-change label needed since no exported API surface was added, removed, or altered.

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