Add a renderer regression test for long non-JSON tool output so the CLI's fallback rendering path is covered alongside Read and structured tool payload truncation.
Constraint: This follow-up must commit only renderer-related changes
Rejected: Touch commands crate to fix unrelated slash-command work in progress | outside the requested renderer-only scope
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep truncation guarantees covered at the renderer boundary for both structured and raw tool payloads
Tested: cargo fmt --all; cargo test -p claw-cli tool_rendering_ -- --nocapture; cargo clippy -p claw-cli --all-targets -- -D warnings
Not-tested: cargo test --workspace and cargo clippy --workspace --all-targets -- -D warnings currently fail in rust/crates/commands/src/lib.rs due pre-existing incomplete agents/skills changes outside this commit
Auto compaction was keying off cumulative usage and re-summarizing from the front of the session, which made long chats shed continuity after the first compaction. The runtime now compacts against the current turn's prompt pressure and preserves prior compacted context as retained summary state instead of treating it like disposable history.
Constraint: Existing /compact behavior and saved-session resume flow had to keep working without schema changes
Rejected: Keep using cumulative input tokens | caused repeat compaction after every subsequent turn once the threshold was crossed
Rejected: Re-summarize prior compacted system messages as ordinary history | degraded continuity and could drop earlier context
Confidence: high
Scope-risk: moderate
Reversibility: clean
Directive: Preserve compacted-summary boundaries when extending compaction again; do not fold prior compacted context back into raw-message removal
Tested: cargo fmt --check; cargo clippy -p runtime -p commands --tests -- -D warnings; cargo test -p runtime; cargo test -p commands
Not-tested: End-to-end interactive CLI auto-compaction against a live Anthropic session
Extend the CLI renderer's generic tool-result path to reuse the existing display-only truncation helper, so large plugin or unknown-tool payloads no longer flood the terminal while the original tool result still flows through runtime/session state unchanged.
The renderer now pretty-prints structured fallback payloads before truncating them for display, and the test suite covers both Read output and generic long tool output rendering. I also added a narrow clippy allow on an oversized slash-command parser test so the workspace lint gate stays green during verification.
Constraint: Tool result truncation must affect screen rendering only, not stored tool output
Rejected: Truncate tool results at execution time | would lose session fidelity and break downstream consumers
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep future tool-output shortening in renderer helpers only; do not trim runtime tool payloads before persistence
Tested: cargo fmt --all; cargo clippy --workspace --all-targets -- -D warnings; cargo test --workspace
Not-tested: Manual interactive terminal run showing truncation in a live REPL session
Some tools, especially Read, can emit very large payloads that overwhelm the interactive renderer. This change truncates only the displayed preview for long tool outputs while leaving the underlying tool result string untouched for downstream logic and persisted session state.
Constraint: Rendering changes must not modify stored tool outputs or tool-result messages
Rejected: Truncate tool output before returning from the executor | would corrupt session history and downstream processing
Confidence: high
Scope-risk: narrow
Directive: Keep truncation strictly in presentation helpers; do not move it into tool execution or session persistence paths
Tested: cargo test -p claw-cli tool_rendering_truncates_ -- --nocapture; cargo test -p claw-cli tool_rendering_helpers_compact_output -- --nocapture
Not-tested: Manual terminal rendering with real multi-megabyte tool output
After the parser can accept thinking-style blocks, the CLI and tools adapters must explicitly ignore them so only user-visible text and tool calls drive runtime behavior. This keeps reasoning metadata from surfacing as text or interfering with tool accumulation.
Constraint: Runtime behavior must remain unchanged for normal text/tool streaming
Rejected: Treat thinking blocks as assistant text | would leak hidden reasoning into visible output and session flow
Confidence: high
Scope-risk: narrow
Directive: If future features need persisted reasoning blocks, add a dedicated runtime representation instead of overloading text handling
Tested: cargo test -p claw-cli response_to_events_ignores_thinking_blocks -- --nocapture; cargo test -p tools response_to_events_ignores_thinking_blocks -- --nocapture
Not-tested: End-to-end interactive run against a live thinking-enabled model
The Rust API layer rejected thinking-enabled responses because it only recognized text and tool_use content blocks. This commit extends the response and SSE parser types to accept reasoning-style content blocks and deltas, with regression coverage for both non-streaming and streaming responses.
Constraint: Keep parsing compatible with existing text and tool-use message flows
Rejected: Deserialize unknown content blocks into an untyped catch-all | would weaken protocol coverage and test precision
Confidence: high
Scope-risk: narrow
Directive: Keep new protocol variants covered at the API boundary so downstream code can make explicit choices about preservation vs. ignoring
Tested: cargo test -p api thinking -- --nocapture
Not-tested: Live API traffic from a real thinking-enabled model
The subagent runtime still advertised and executed only built-in tools, which left plugin-provided tools outside the Agent execution path. This change loads the same plugin-aware registry used by the CLI for subagent tool definitions, permission policy, and execution lookup so delegated runs can resolve plugin tools consistently.
Constraint: Plugin tools must respect the existing runtime plugin config and enabled-plugin state
Rejected: Thread plugin-specific exceptions through execute_tool directly | would bypass registry validation and duplicate lookup rules
Confidence: medium
Scope-risk: moderate
Reversibility: clean
Directive: Keep CLI and subagent registry construction aligned when plugin tool loading rules change
Tested: cargo test -p tools -p claw-cli
Not-tested: Live Anthropic subagent runs invoking plugin tools end-to-end
Expanded the plugin manager so installed plugin discovery now falls back across
install-root scans and registry-only paths without breaking on stale entries.
Missing registry install paths are pruned during discovery, while valid
registry-backed installs outside the install root remain loadable.
Constraint: Keep the change isolated to plugin manifest/manager/registry code
Rejected: Fail listing when any registry install path is missing | stale local state should not block plugin discovery
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Discovery now self-heals missing registry install paths; preserve the registry-fallback path for valid installs outside install_root
Tested: cargo fmt --all; cargo test -p plugins
Not-tested: End-to-end CLI flows with mixed stale and git-backed installed plugins
Expanded the Rust plugin loader coverage around manifest parsing so invalid
permission values, invalid tool permissions, and multi-error manifests are
validated in a structured way. Added scan-path coverage for installed plugin
directories so both root and packaged manifests are discovered from the install
root, independent of registry entries.
Constraint: Keep plugin loader changes isolated to the plugins crate surface
Rejected: Add a new manifest crate for shared schemas | unnecessary scope for this pass
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: If manifest permissions or tool permission labels expand, update both the enums and validation tests together
Tested: cargo fmt --all; cargo test -p plugins
Not-tested: Cross-crate runtime consumption of any future expanded manifest permission variants
The shared /plugins command flow already routes through the plugin registry, but
allowed-tool normalization still fell back to builtin tools when registry
construction failed. This keeps plugin-related validation errors visible at the
CLI boundary and updates tools tests to use the enum-based plugin permission
API so workspace verification remains green.
Constraint: Plugin tool permissions are now strongly typed in the plugins crate
Rejected: Restore string-based permission arguments in tests | weakens the plugin API contract
Rejected: Keep builtin fallback in normalize_allowed_tools | masks plugin registry integration failures
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Do not silently bypass current_tool_registry() failures unless plugin-aware allowed-tool validation is intentionally being disabled
Tested: cargo test -p commands -- --nocapture; cargo test --workspace
Not-tested: Manual REPL /plugins interaction in a live session
