diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index c3e094d08..c01bb24c4 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -34,6 +34,8 @@ Below are some of the specific details of various contributions.
 * HAL 9000 has contributed the automated CLI docstring example validation (#9106): added `DocstringExampleValidator` to enforce positional-before-option ordering in CLI `Examples:` sections, with Behave test coverage and CONTRIBUTING.md documentation.
 * HAL 9000 has contributed the AutoDebugAgent prompt injection mitigation fix (#9110): sanitized user-provided `error_message` and `code_context` fields in all three agent methods using `PromptSanitizer` boundary markers, added graceful `PromptInjectionDetected` exception handling, and added BDD and Robot Framework integration tests for the security fix.
 * HAL 9000 has contributed the PureGraph BDD coverage suite (PR #9601 / issue #9531): wired the previously orphaned `features/steps/pure_graph_coverage_steps.py` definitions through the existing `features/consolidated_langgraph.feature` (topological ordering, function execution, missing function fallback, and non-functional node handling); created Robot Framework integration tests in `robot/langgraph/pure_graph.robot` backed by the `robot/langgraph/pure_graph_lib.py` Python library; and implemented ASV benchmarks in `benchmarks/pure_graph_bench.py` measuring execution throughput across varying node counts.
+* HAL 9000 has contributed comprehensive milestone documentation for v3.2.0 (Decisions + Validations + Invariants) and v3.3.0 (Corrections + Subplans + Checkpoints), including CLI command reference, decision system guide, and subplan/checkpoint documentation (PR #9796).
+* Rui Hu has contributed the v3 actor YAML schema validation fix (#5869): added `ActorConfigSchema` validation to the `agents actor add --config` CLI command, covering cycle detection, required field validation, and enum validation for v3 YAML actor definitions.
 * This project was made possible thanks to considerable donation of time, money, and resources by CleverThis, Inc.
 * HAL 9000 has contributed automated bug fixes, CLI output formatting improvements, and ongoing maintenance as part of the CleverAgents automation system.
 * HAL 9000 has contributed the pr-review-pool-supervisor tracking prefix documentation fix (#7891): aligned all documentation references from the outdated `AUTO-REV-POOL` prefix to the correct `AUTO-REV-SUP` prefix used in production.