Breaking Changes

BREAKING execute accepts an optional third argument — a config map that replaces the old binding-based *execute-config* dynamic var for passing options. Users no longer need (binding [utils/*execute-config* {...}] (execute ...)).

• (execute registry instruction) — unchanged
• (execute registry instruction {:error-data-string false}) — new opts map
• Config keys: :error-data-string, :hook-execute-start, :hook-execute-end
• Config is inherited by nested execute calls; inner calls can override specific keys.

BREAKING execute-trace signature changed from (execute-trace exec-fn) to (execute-trace registry instruction) / (execute-trace registry instruction opts). No longer requires wrapping in a zero-arg function.

BREAKING Removed :debug-result configuration option. Internal structures (:internal/cm-list, :internal/cm-dependency, :internal/cm-running-order, :internal/path-trie, :internal/cm-results, :internal/original-instruction, :registry) are now always retained in the status-map. If you relied on stripped status-maps, dissoc internal keys yourself.

BREAKING Removed dependency modes :all-inside-recur and :point-and-all-inside-recur. Supported modes: :point, :all-inside, :none.

BREAKING Removed print-stats, print-trace (print-deep-stats) from commando.impl.utils. Replaced by commando.debug namespace.

BREAKING registry_test.clj renamed to registry_test.cljc (cross-platform).

BREAKING status-map return result as is

Added

ADDED commando.debug namespace — dedicated module for debug visualization:

• execute-debug — execute and visualize in one of six display modes: :tree, :table, :graph, :stats, :instr-before / :instr-after. Supports combining multiple modes via vector.
• execute-trace — trace all nested commando/execute calls with timing and structure.

ADDED commando.impl.pathtrie module — trie data structure for O(depth) command lookup by path. Built during the same traversal pass as command discovery, eliminating extra passes over the instruction tree.

ADDED new status-map keys always present after execution:

• :internal/cm-results — map {CommandMapPath -> resolved-value} with result of each command's :apply function.
• :internal/path-trie — nested trie for efficient command lookup by path.
• :internal/original-instruction — the original instruction before command evaluation.

ADDED structural-command-type? and structural-command-types in commando.impl.registry for detecting internal structural commands (:instruction/_value, :instruction/_map, :instruction/_vec).

Performance

OPTIMIZED find-commands BFS traversal in commando.impl.finding_commands:

• Replaced vector-based queue with transient index-based queue (O(N) vs O(N^2) from subvec+into).
• Transient set for found-commands accumulation.
• Direct enqueue-coll-children! / enqueue-command-children! instead of intermediate mapv vectors.
• Path-trie built in the same pass — no separate traversal needed.

OPTIMIZED execute-commands in commando.impl.executing:

• Transient results map avoids N persistent map copies during execution loop.
• Index-based loop with nth instead of rest/first on remaining commands.

OPTIMIZED build-dependency-graph in commando.impl.dependency:

• Accepts pre-built path-trie from find-commands instead of rebuilding it.
• Transient accumulation for forward dependency map.
• :all-inside dependency resolution uses reduce-kv on trie subtree instead of dissoc+vals+keep+set chain.

OPTIMIZED topological-sort in commando.impl.graph:

• Transient maps during in-degree computation.
• Transient queue for sorted result accumulation.

OPTIMIZED CommandMapPath in commando.impl.command_map:

• Hash computed once at construction time and cached.
• vector-starts-with? uses indexed loop instead of lazy seq/take.

OPTIMIZED Malli validation in commando.commands.builtin:

• Pre-computed validators and explainers for each command spec.
• Cached coercer for status-map messages. Avoids re-creating schemas on every call.

Fixed

FIXED execute-command-impl in commando.impl.executing — guard for non-map command-data before calling dissoc on driver keys (:=>, "=>).

FIXED point dependency errors in commando.impl.dependency now include :command-path, :path, and :command in error data.

Updated

UPDATED resolve-relative-path in commando.impl.dependency — refactored from reduce to recursive loop for clarity and correct early termination.

UPDATED find-anchor-path in commando.impl.dependency — refactored from reduce to loop.

UPDATED documentation — restructured README.md with comprehensive status-map documentation, improved navigation, "Managing the Registry" and "Debugging" sections. Moved doc files to examples/ with runnable code examples.

UPDATED performance test alias from :performance to :performance-core in deps.edn.

UPDATED tests — split monolithic core_test.cljc into focused namespaces: dependency_test.cljc, finding_commands_test.cljc, graph_test.cljc, pathtrie_test.cljc. Added debug_test.cljc. Converted registry_test to .cljc for cross-platform support.