Sourced from @​mariozechner/pi-coding-agent's releases.

v0.64.0

New Features

• Extensions and SDK callers can attach a prepareArguments hook to any tool definition, letting them normalize or migrate raw model arguments before schema validation. The built-in edit tool uses this to transparently support sessions created with the old single-edit schema. See https://github.com/badlogic/pi-mono/tree/HEAD/packages/coding-agent/blob/HEAD/docs/extensions.md
• Extensions can customize the collapsed thinking block label via ctx.ui.setHiddenThinkingLabel(). See https://github.com/badlogic/pi-mono/tree/HEAD/packages/coding-agent/blob/HEAD/examples/extensions/hidden-thinking-label.ts (#2673)

Breaking Changes

• ModelRegistry no longer has a public constructor. SDK callers and tests must use ModelRegistry.create(authStorage, modelsJsonPath?) for file-backed registries or ModelRegistry.inMemory(authStorage) for built-in-only registries. Direct new ModelRegistry(...) calls no longer compile.

Added

• Added ToolDefinition.prepareArguments hook to prepare raw tool call arguments before schema validation, enabling compatibility shims for resumed sessions with outdated tool schemas
• Built-in edit tool now uses prepareArguments to silently fold legacy top-level oldText/newText into edits[] when resuming old sessions
• Added ctx.ui.setHiddenThinkingLabel() so extensions can customize the collapsed thinking label in interactive mode, with a no-op in RPC mode and a runnable example extension in examples/extensions/hidden-thinking-label.ts (#2673)

Fixed

• Fixed extension-queued user messages to refresh the interactive pending-message list so messages submitted while a turn is active are no longer silently dropped (#2674 by @​mrexodia)
• Fixed monorepo tsconfig.json path mappings to resolve @mariozechner/pi-ai subpath exports to source files in development checkouts (#2625 by @​ferologics)
• Fixed TUI cell size response handling to consume only exact CSI 6 ; height ; width t replies, so bare Escape is no longer swallowed while waiting for terminal image metadata (#2661)
• Fixed Kitty keyboard protocol keypad functional keys to normalize to logical digits, symbols, and navigation keys, so numpad input in terminals such as iTerm2 no longer inserts Private Use Area gibberish or gets ignored (#2650)

v0.63.2

New Features

• Extension handlers can now use ctx.signal to forward cancellation into nested model calls, fetch(), and other abort-aware work. See https://github.com/badlogic/pi-mono/tree/HEAD/packages/coding-agent/blob/HEAD/docs/extensions.md#ctxsignal (#2660)
• Built-in edit tool input now uses edits[] as the only replacement shape, reducing invalid tool calls caused by mixed single-edit and multi-edit schemas (#2639)
• Large multi-edit results no longer trigger full-screen redraws in the interactive TUI when the final diff is rendered (#2664)

Added

• Added ctx.signal to ExtensionContext and wired it to the active agent turn so extension handlers can forward cancellation into nested model calls, fetch(), and other abort-aware work (#2660)

Fixed

• Fixed built-in edit tool input to use edits[] as the only replacement shape, eliminating the mixed single-edit and multi-edit modes that caused repeated invalid tool calls and retries (#2639)
• Fixed edit tool TUI rendering to defer large multi-edit diffs to the settled result, avoiding full-screen redraws when the tool completes (#2664)

v0.63.1

Added

• Added gemini-3.1-pro-preview-customtools model availability for the google-vertex provider (#2610 by @​gordonhwc)

Fixed

• Documented tool_call input mutation as supported extension API behavior, clarified that post-mutation inputs are not re-validated, and added regression coverage for executing mutated tool arguments (#2611)

... (truncated)

Sourced from @​mariozechner/pi-coding-agent's changelog.

[0.64.0] - 2026-03-29

New Features

• Extensions and SDK callers can attach a prepareArguments hook to any tool definition, letting them normalize or migrate raw model arguments before schema validation. The built-in edit tool uses this to transparently support sessions created with the old single-edit schema. See https://github.com/badlogic/pi-mono/blob/main/packages/coding-agent/docs/extensions.md
• Extensions can customize the collapsed thinking block label via ctx.ui.setHiddenThinkingLabel(). See https://github.com/badlogic/pi-mono/blob/main/packages/coding-agent/examples/extensions/hidden-thinking-label.ts (#2673)

Breaking Changes

• ModelRegistry no longer has a public constructor. SDK callers and tests must use ModelRegistry.create(authStorage, modelsJsonPath?) for file-backed registries or ModelRegistry.inMemory(authStorage) for built-in-only registries. Direct new ModelRegistry(...) calls no longer compile.

Added

• Added ToolDefinition.prepareArguments hook to prepare raw tool call arguments before schema validation, enabling compatibility shims for resumed sessions with outdated tool schemas
• Built-in edit tool now uses prepareArguments to silently fold legacy top-level oldText/newText into edits[] when resuming old sessions
• Added ctx.ui.setHiddenThinkingLabel() so extensions can customize the collapsed thinking label in interactive mode, with a no-op in RPC mode and a runnable example extension in examples/extensions/hidden-thinking-label.ts (#2673)

Fixed

• Fixed extension-queued user messages to refresh the interactive pending-message list so messages submitted while a turn is active are no longer silently dropped (#2674 by @​mrexodia)
• Fixed monorepo tsconfig.json path mappings to resolve @mariozechner/pi-ai subpath exports to source files in development checkouts (#2625 by @​ferologics)
• Fixed TUI cell size response handling to consume only exact CSI 6 ; height ; width t replies, so bare Escape is no longer swallowed while waiting for terminal image metadata (#2661)
• Fixed Kitty keyboard protocol keypad functional keys to normalize to logical digits, symbols, and navigation keys, so numpad input in terminals such as iTerm2 no longer inserts Private Use Area gibberish or gets ignored (#2650)

[0.63.2] - 2026-03-29

New Features

• Extension handlers can now use ctx.signal to forward cancellation into nested model calls, fetch(), and other abort-aware work. See https://github.com/badlogic/pi-mono/blob/main/packages/coding-agent/docs/extensions.md#ctxsignal (#2660)
• Built-in edit tool input now uses edits[] as the only replacement shape, reducing invalid tool calls caused by mixed single-edit and multi-edit schemas (#2639)
• Large multi-edit results no longer trigger full-screen redraws in the interactive TUI when the final diff is rendered (#2664)

Added

• Added ctx.signal to ExtensionContext and wired it to the active agent turn so extension handlers can forward cancellation into nested model calls, fetch(), and other abort-aware work (#2660)

Fixed

• Fixed built-in edit tool input to use edits[] as the only replacement shape, eliminating the mixed single-edit and multi-edit modes that caused repeated invalid tool calls and retries (#2639)
• Fixed edit tool TUI rendering to defer large multi-edit diffs to the settled result, avoiding full-screen redraws when the tool completes (#2664)

[0.63.1] - 2026-03-27

Added

• Added gemini-3.1-pro-preview-customtools model availability for the google-vertex provider (#2610 by @​gordonhwc)

Fixed

• Documented tool_call input mutation as supported extension API behavior, clarified that post-mutation inputs are not re-validated, and added regression coverage for executing mutated tool arguments (#2611)

... (truncated)

• d0404a4 Release v0.64.0
• 8c64058 fix(tui): normalize keypad functional keys closes #2650
• f1929c8 docs(coding-agent): add hidden thinking label to New Features section
• de022ce feat(coding-agent): add hidden thinking label api closes #2673
• 9508eea docs(coding-agent): audit and fix changelog entries since v0.63.2
• 182ebe5 docs: add changelog entries for faux provider and ModelRegistry
• 350d17d Merge branch 'main' of https://github.com/badlogic/pi-mono
• ef6af5e feat(ai,coding-agent): add faux provider and ModelRegistry factories
• b5f425a feat(agent,coding-agent): add prepareArguments hook for pre-validation argume...
• 7e1dd88 fix(coding-agent): restore extension input source semantics
• Additional commits viewable in compare view

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