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feat(plugin): register spec-defined extension points in PluginManager #1217

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freemo merged 1 commit from feature/plugin-extension-points into master

2026-04-02 17:40:19 +00:00

CoreRasurae commented

2026-03-31 03:59:54 +00:00

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Summary

Registers all 30 spec-defined extension points in the ExtensionPointRegistry with typed Protocol interfaces, completing the plugin extension infrastructure. Plugins can now discover and register implementations for all system hooks defined in the specification.

Changes

Created extension_protocols.py with 21 @runtime_checkable Protocol classes covering all extension point categories
Created extension_catalog.py with declarative extension point definitions and register_all_extension_points() bootstrap function
Wired extension point registration into get_container() during app startup
Added context subsystem integration: ACMSPipeline now accepts a PluginManager and can discover context.* extension point implementations
Added 38 Behave test scenarios covering registration, lookup, protocol conformance, and entry point discovery

Extension Point Categories (30 total)

Category	Count	Extension Points
Context	12	strategy, 10 pipeline components, storage_backend
Output	3	renderer, materializer, format
Validation	2	runner, rule_provider
Tools	2	provider, middleware
Skills	2	provider, template
Resources	2	resolver, type_handler
A2A	2	transport, extension_method
Events	2	handler, filter
Config	2	source, validator
Safety	1	guardrail

Quality Gates

lint: Passed
typecheck: Passed (0 errors)
unit_tests: Passed (13,023 scenarios)
coverage: 97.0% — OK

Closes #939

## Summary Registers all 30 spec-defined extension points in the `ExtensionPointRegistry` with typed Protocol interfaces, completing the plugin extension infrastructure. Plugins can now discover and register implementations for all system hooks defined in the specification. ### Changes - Created `extension_protocols.py` with 21 `@runtime_checkable` Protocol classes covering all extension point categories - Created `extension_catalog.py` with declarative extension point definitions and `register_all_extension_points()` bootstrap function - Wired extension point registration into `get_container()` during app startup - Added context subsystem integration: `ACMSPipeline` now accepts a `PluginManager` and can discover context.* extension point implementations - Added 38 Behave test scenarios covering registration, lookup, protocol conformance, and entry point discovery ### Extension Point Categories (30 total) | Category | Count | Extension Points | |----------|-------|-----------------| | Context | 12 | strategy, 10 pipeline components, storage_backend | | Output | 3 | renderer, materializer, format | | Validation | 2 | runner, rule_provider | | Tools | 2 | provider, middleware | | Skills | 2 | provider, template | | Resources | 2 | resolver, type_handler | | A2A | 2 | transport, extension_method | | Events | 2 | handler, filter | | Config | 2 | source, validator | | Safety | 1 | guardrail | ### Quality Gates - lint: Passed - typecheck: Passed (0 errors) - unit_tests: Passed (13,023 scenarios) - coverage: 97.0% — OK Closes #939

CoreRasurae added 1 commit

2026-03-31 03:59:54 +00:00

feat(plugin): register spec-defined extension points in PluginManager

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3f5ca4e869

Registered all 30 spec-defined extension points in the ExtensionPointRegistry
with typed Protocol interfaces for each category: context strategies (12),
output renderers (3), validation runners (2), tool providers (2),
skill providers (2), resource handlers (2), A2A transports (2),
event handlers (2), config sources (2), and safety guardrails (1).

Added extension_protocols.py with Protocol definitions and
extension_catalog.py with the registration catalog. Wired context
subsystem to query context.* extension points at initialization.

ISSUES CLOSED: #939

CoreRasurae added this to the v3.6.0 milestone

2026-03-31 04:00:01 +00:00

CoreRasurae added the

Type

Feature

label

2026-03-31 04:00:01 +00:00

freemo self-assigned this

2026-04-02 06:15:14 +00:00

freemo commented

2026-04-02 08:03:15 +00:00

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🔒 Claimed by pr-reviewer-3. Starting independent code review.

freemo approved these changes

2026-04-02 08:12:28 +00:00

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Code Review — PR #1217: feat(plugin): register spec-defined extension points in PluginManager

✅ APPROVED

Reviewed: Full diff (7 files, 1738 additions), linked issue #939, specification alignment, test coverage, code quality.

Specification Alignment ✅

All 30 spec-defined extension points are registered with correct names, categories, and counts:

Context (12): strategy, 10 pipeline components, storage_backend
Output (3), Validation (2), Tools (2), Skills (2), Resources (2), A2A (2), Events (2), Config (2), Safety (1)

The extension point names, Protocol interfaces, and category groupings match the specification's Extension Points Summary.

Architecture & Design ✅

ExtensionPointRegistrar protocol in extension_catalog.py — good use of structural typing to decouple the catalog from PluginManager.
Lazy wiring in container.py — extension points registered after container creation, before lazy providers are resolved. Correct ordering.
ACMSPipeline integration — clean optional plugin_manager parameter with discovery-only behavior (no auto-activation). Follows the spec's "wired on demand" pattern.
Idempotent registration — register_extension_point uses dict keyed by name, so re-registration is safe.

Protocol Design ✅

All 21 @runtime_checkable Protocol classes use collections.abc.Mapping/Sequence for parameter types — good for structural typing compatibility.
Each protocol has a descriptive name property and meaningful method signatures.
ALL_EXTENSION_PROTOCOLS dict provides programmatic access for introspection.

Test Quality ✅

38 Behave scenarios covering: registration, lookup by name, lookup by category, protocol type correctness, entry point discovery, ACMSPipeline wiring, runtime-checkable verification, idempotency, registry_key consistency, and protocol conformance for all 21 protocol types.
Tests verify both positive and negative cases (non-existent lookup returns None, no plugins by default).
Stub implementations exercise actual protocol methods, not just isinstance checks.

Minor Observations (non-blocking)

Step file size: plugin_extension_points_steps.py is 787 lines (project guideline: <500). The 21 stub classes account for ~350 lines. Consider extracting stubs to features/mocks/plugin_extension_stubs.py in a follow-up.
# noqa: E501: Two line-length suppressions in extension_protocols.py (lines 156, 257). These are long Protocol method signatures that could be wrapped.
TOTAL_EXTENSION_POINTS constant: Hardcoded as 30 rather than derived from len(_EXTENSION_POINT_DEFS). Tests will catch drift, but deriving it would be more robust.

These are housekeeping items that don't affect correctness or spec alignment. They can be addressed in a follow-up cleanup ticket.

## Code Review — PR #1217: feat(plugin): register spec-defined extension points in PluginManager ### ✅ APPROVED **Reviewed**: Full diff (7 files, 1738 additions), linked issue #939, specification alignment, test coverage, code quality. --- ### Specification Alignment ✅ All 30 spec-defined extension points are registered with correct names, categories, and counts: - Context (12): strategy, 10 pipeline components, storage_backend - Output (3), Validation (2), Tools (2), Skills (2), Resources (2), A2A (2), Events (2), Config (2), Safety (1) The extension point names, Protocol interfaces, and category groupings match the specification's Extension Points Summary. ### Architecture & Design ✅ - **`ExtensionPointRegistrar` protocol** in `extension_catalog.py` — good use of structural typing to decouple the catalog from `PluginManager`. - **Lazy wiring** in `container.py` — extension points registered after container creation, before lazy providers are resolved. Correct ordering. - **ACMSPipeline integration** — clean optional `plugin_manager` parameter with discovery-only behavior (no auto-activation). Follows the spec's "wired on demand" pattern. - **Idempotent registration** — `register_extension_point` uses dict keyed by name, so re-registration is safe. ### Protocol Design ✅ - All 21 `@runtime_checkable` Protocol classes use `collections.abc.Mapping`/`Sequence` for parameter types — good for structural typing compatibility. - Each protocol has a descriptive name property and meaningful method signatures. - `ALL_EXTENSION_PROTOCOLS` dict provides programmatic access for introspection. ### Test Quality ✅ - 38 Behave scenarios covering: registration, lookup by name, lookup by category, protocol type correctness, entry point discovery, ACMSPipeline wiring, runtime-checkable verification, idempotency, registry_key consistency, and protocol conformance for all 21 protocol types. - Tests verify both positive and negative cases (non-existent lookup returns None, no plugins by default). - Stub implementations exercise actual protocol methods, not just isinstance checks. ### Minor Observations (non-blocking) 1. **Step file size**: `plugin_extension_points_steps.py` is 787 lines (project guideline: <500). The 21 stub classes account for ~350 lines. Consider extracting stubs to `features/mocks/plugin_extension_stubs.py` in a follow-up. 2. **`# noqa: E501`**: Two line-length suppressions in `extension_protocols.py` (lines 156, 257). These are long Protocol method signatures that could be wrapped. 3. **`TOTAL_EXTENSION_POINTS` constant**: Hardcoded as `30` rather than derived from `len(_EXTENSION_POINT_DEFS)`. Tests will catch drift, but deriving it would be more robust. These are housekeeping items that don't affect correctness or spec alignment. They can be addressed in a follow-up cleanup ticket.

freemo referenced this pull request

2026-04-02 08:13:07 +00:00

feat(plugin): register spec-defined extension points in PluginManager #939

freemo commented

2026-04-02 16:47:55 +00:00

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Review claimed by reviewer pool instance reviewer-pool-1. Dispatching independent code review.

freemo approved these changes

2026-04-02 16:51:05 +00:00

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Independent Code Review — PR #1217: feat(plugin): register spec-defined extension points in PluginManager

✅ APPROVED (Second Independent Review)

Reviewed: Full diff (7 files, 1738 additions), linked issue #939, specification alignment, type safety, test quality, correctness, API consistency.

Specification Alignment ✅

All 30 spec-defined extension points are correctly registered with proper names, categories, and Protocol interfaces:

Context (12): strategy, 10 pipeline components, storage_backend
Output (3): renderer, materializer, format
Validation (2): runner, rule_provider
Tools (2): provider, middleware
Skills (2): provider, template
Resources (2): resolver, type_handler
A2A (2): transport, extension_method
Events (2): handler, filter
Config (2): source, validator
Safety (1): guardrail

Extension point names and category groupings match the specification's Extension Points Summary.

Architecture & Design ✅

ExtensionPointRegistrar Protocol in extension_catalog.py — structural typing decouples the catalog from PluginManager. Good design.
_ExtensionPointDef internal descriptor with __slots__ — efficient and clean.
_category_from_name() helper — simple, correct, well-documented with doctest examples.
Lazy wiring in container.py — extension points registered after container creation with graceful degradation (try/except with warning log). Correct ordering.
ACMSPipeline integration — clean optional plugin_manager parameter with discovery-only behavior (no auto-activation). Follows the spec's "wired on demand" pattern.
TYPE_CHECKING import for PluginManager in acms_service.py — correctly avoids circular imports.

Type Safety ✅

All 21 @runtime_checkable Protocol classes use collections.abc.Mapping/Sequence for parameter types — good structural typing.
All functions have explicit type annotations (parameters and return types).
No # type: ignore suppressions anywhere.
ExtensionPoint Pydantic model uses ConfigDict(frozen=True, arbitrary_types_allowed=True) — correct for storing type references.

Test Quality ✅

38 Behave scenarios covering: registration, lookup by name, lookup by category, protocol type correctness, entry point discovery, ACMSPipeline wiring, runtime-checkable verification, idempotency, registry_key consistency, and protocol conformance for all 21 protocol types.
Tests verify both positive and negative cases (non-existent lookup returns None, no plugins by default).
Stub implementations exercise actual protocol methods, not just isinstance checks.
Feature file is well-structured with clear section headers.

Correctness ✅

register_all_extension_points() returns count and iterates all 30 definitions — correct.
get_extension_points_by_category() uses setdefault pattern — correct.
context_extension_points property filters by startswith("context.") — correct.
Idempotent registration works because _extension_points is a dict keyed by name.

Commit Message ✅

Follows Conventional Changelog format: feat(plugin): register spec-defined extension points in PluginManager
Has ISSUES CLOSED: #939 footer
Descriptive body explaining all changes

PR Metadata ✅

Type/Feature label ✅
Milestone v3.6.0 ✅
Closes #939 in body ✅
Single commit on branch ✅

Observations (non-blocking, follow-up items)

Step file size: plugin_extension_points_steps.py is 787 lines (project guideline: <500). The 21 stub classes account for ~350 lines. Recommend extracting stubs to features/mocks/plugin_extension_stubs.py in a follow-up ticket.
TOTAL_EXTENSION_POINTS constant: Hardcoded as 30 rather than derived from len(_EXTENSION_POINT_DEFS). Tests will catch drift, but deriving it would be more robust.
Two # noqa: E501 in extension_protocols.py: These are linting suppressions for long Protocol method signatures, not type suppressions. Acceptable per project rules.

These are housekeeping items that don't affect correctness, spec alignment, or type safety.

## Independent Code Review — PR #1217: feat(plugin): register spec-defined extension points in PluginManager ### ✅ APPROVED (Second Independent Review) **Reviewed**: Full diff (7 files, 1738 additions), linked issue #939, specification alignment, type safety, test quality, correctness, API consistency. --- ### Specification Alignment ✅ All 30 spec-defined extension points are correctly registered with proper names, categories, and Protocol interfaces: - Context (12): strategy, 10 pipeline components, storage_backend - Output (3): renderer, materializer, format - Validation (2): runner, rule_provider - Tools (2): provider, middleware - Skills (2): provider, template - Resources (2): resolver, type_handler - A2A (2): transport, extension_method - Events (2): handler, filter - Config (2): source, validator - Safety (1): guardrail Extension point names and category groupings match the specification's Extension Points Summary. ### Architecture & Design ✅ - **`ExtensionPointRegistrar` Protocol** in `extension_catalog.py` — structural typing decouples the catalog from `PluginManager`. Good design. - **`_ExtensionPointDef`** internal descriptor with `__slots__` — efficient and clean. - **`_category_from_name()`** helper — simple, correct, well-documented with doctest examples. - **Lazy wiring** in `container.py` — extension points registered after container creation with graceful degradation (try/except with warning log). Correct ordering. - **ACMSPipeline integration** — clean optional `plugin_manager` parameter with discovery-only behavior (no auto-activation). Follows the spec's "wired on demand" pattern. - **TYPE_CHECKING import** for `PluginManager` in `acms_service.py` — correctly avoids circular imports. ### Type Safety ✅ - All 21 `@runtime_checkable` Protocol classes use `collections.abc.Mapping`/`Sequence` for parameter types — good structural typing. - All functions have explicit type annotations (parameters and return types). - No `# type: ignore` suppressions anywhere. - `ExtensionPoint` Pydantic model uses `ConfigDict(frozen=True, arbitrary_types_allowed=True)` — correct for storing type references. ### Test Quality ✅ - 38 Behave scenarios covering: registration, lookup by name, lookup by category, protocol type correctness, entry point discovery, ACMSPipeline wiring, runtime-checkable verification, idempotency, registry_key consistency, and protocol conformance for all 21 protocol types. - Tests verify both positive and negative cases (non-existent lookup returns None, no plugins by default). - Stub implementations exercise actual protocol methods, not just isinstance checks. - Feature file is well-structured with clear section headers. ### Correctness ✅ - `register_all_extension_points()` returns count and iterates all 30 definitions — correct. - `get_extension_points_by_category()` uses `setdefault` pattern — correct. - `context_extension_points` property filters by `startswith("context.")` — correct. - Idempotent registration works because `_extension_points` is a dict keyed by name. ### Commit Message ✅ - Follows Conventional Changelog format: `feat(plugin): register spec-defined extension points in PluginManager` - Has `ISSUES CLOSED: #939` footer - Descriptive body explaining all changes ### PR Metadata ✅ - `Type/Feature` label ✅ - Milestone v3.6.0 ✅ - `Closes #939` in body ✅ - Single commit on branch ✅ ### Observations (non-blocking, follow-up items) 1. **Step file size**: `plugin_extension_points_steps.py` is 787 lines (project guideline: <500). The 21 stub classes account for ~350 lines. Recommend extracting stubs to `features/mocks/plugin_extension_stubs.py` in a follow-up ticket. 2. **`TOTAL_EXTENSION_POINTS` constant**: Hardcoded as `30` rather than derived from `len(_EXTENSION_POINT_DEFS)`. Tests will catch drift, but deriving it would be more robust. 3. **Two `# noqa: E501`** in `extension_protocols.py`: These are linting suppressions for long Protocol method signatures, not type suppressions. Acceptable per project rules. These are housekeeping items that don't affect correctness, spec alignment, or type safety.

freemo scheduled this pull request to auto merge when all checks succeed

2026-04-02 16:51:13 +00:00

freemo referenced this pull request

2026-04-02 16:51:26 +00:00

feat(plugin): register spec-defined extension points in PluginManager #939

freemo referenced this pull request

2026-04-02 17:11:30 +00:00

[Automated] Product Build Session State #1314

freemo commented

2026-04-02 17:34:24 +00:00

Owner

Review claimed by reviewer pool instance reviewer-pool-2. Dispatching independent code review.

freemo commented

2026-04-02 17:37:43 +00:00

Owner

Review claimed by reviewer pool instance reviewer-pool-1. Dispatching independent code review.

freemo approved these changes

2026-04-02 17:39:58 +00:00

Dismissed

freemo left a comment

Independent Code Review — PR #1217: feat(plugin): register spec-defined extension points in PluginManager

✅ APPROVED (Third Independent Review)

Reviewed: Full diff (7 files, 1738 additions), linked issue #939, specification alignment, type safety, test quality, correctness, API consistency, security.

Specification Alignment ✅

All 30 spec-defined extension points are correctly registered with proper names, categories, and Protocol interfaces matching the specification's Extension Points Summary:

Context (12): strategy, 10 pipeline components, storage_backend
Output (3): renderer, materializer, format
Validation (2): runner, rule_provider
Tools (2): provider, middleware
Skills (2): provider, template
Resources (2): resolver, type_handler
A2A (2): transport, extension_method
Events (2): handler, filter
Config (2): source, validator
Safety (1): guardrail

Architecture & Design ✅

ExtensionPointRegistrar Protocol — structural typing decouples the catalog from PluginManager. Clean design.
_ExtensionPointDef with __slots__ — efficient internal descriptor.
_category_from_name() — simple, correct, well-documented.
Lazy wiring in container.py — graceful degradation with try/except and warning log. Correct ordering.
ACMSPipeline integration — optional plugin_manager parameter with discovery-only behavior (no auto-activation). Follows spec's "wired on demand" pattern.
TYPE_CHECKING import for PluginManager in acms_service.py — correctly avoids circular imports.

Type Safety ✅

All 21 @runtime_checkable Protocol classes use collections.abc.Mapping/Sequence for parameter types.
All functions have explicit type annotations (parameters and return types).
No # type: ignore suppressions anywhere.
Two # noqa: E501 are linting suppressions for long Protocol method signatures, not type suppressions — acceptable.

Test Quality ✅

38 Behave scenarios covering: registration, lookup by name, lookup by category, protocol type correctness, entry point discovery, ACMSPipeline wiring, runtime-checkable verification, idempotency, registry_key consistency, and protocol conformance for all 21 protocol types.
Both positive and negative cases tested (non-existent lookup returns None, no plugins by default).
Stub implementations exercise actual protocol methods, not just isinstance checks.
Feature file is well-structured with clear section headers.

Correctness ✅

register_all_extension_points() iterates all 30 definitions and returns count — correct.
get_extension_points_by_category() uses setdefault pattern — correct.
context_extension_points property filters by startswith("context.") — correct.
Idempotent registration works because _extension_points is a dict keyed by name.
Container wiring has graceful degradation with structured logging.

Commit Message & PR Metadata ✅

Conventional Changelog format: feat(plugin): register spec-defined extension points in PluginManager
ISSUES CLOSED: #939 footer
Type/Feature label, Milestone v3.6.0, Closes #939 in body
Single commit on branch

Security ✅

No secrets or credentials in code.
No user input handling or injection surfaces.

Non-blocking Observations (follow-up items)

Step file size: plugin_extension_points_steps.py is 787 lines (guideline: <500). The 21 stub classes account for ~350 lines. Recommend extracting stubs to features/mocks/plugin_extension_stubs.py in a follow-up.
TOTAL_EXTENSION_POINTS: Hardcoded as 30 rather than derived from len(_EXTENSION_POINT_DEFS). Tests catch drift, but deriving would be more robust.

These are housekeeping items that don't affect correctness, spec alignment, or type safety.

## Independent Code Review — PR #1217: feat(plugin): register spec-defined extension points in PluginManager ### ✅ APPROVED (Third Independent Review) **Reviewed**: Full diff (7 files, 1738 additions), linked issue #939, specification alignment, type safety, test quality, correctness, API consistency, security. --- ### Specification Alignment ✅ All 30 spec-defined extension points are correctly registered with proper names, categories, and Protocol interfaces matching the specification's Extension Points Summary: - Context (12): strategy, 10 pipeline components, storage_backend - Output (3): renderer, materializer, format - Validation (2): runner, rule_provider - Tools (2): provider, middleware - Skills (2): provider, template - Resources (2): resolver, type_handler - A2A (2): transport, extension_method - Events (2): handler, filter - Config (2): source, validator - Safety (1): guardrail ### Architecture & Design ✅ - **`ExtensionPointRegistrar` Protocol** — structural typing decouples the catalog from `PluginManager`. Clean design. - **`_ExtensionPointDef`** with `__slots__` — efficient internal descriptor. - **`_category_from_name()`** — simple, correct, well-documented. - **Lazy wiring** in `container.py` — graceful degradation with try/except and warning log. Correct ordering. - **ACMSPipeline integration** — optional `plugin_manager` parameter with discovery-only behavior (no auto-activation). Follows spec's "wired on demand" pattern. - **`TYPE_CHECKING` import** for `PluginManager` in `acms_service.py` — correctly avoids circular imports. ### Type Safety ✅ - All 21 `@runtime_checkable` Protocol classes use `collections.abc.Mapping`/`Sequence` for parameter types. - All functions have explicit type annotations (parameters and return types). - No `# type: ignore` suppressions anywhere. - Two `# noqa: E501` are linting suppressions for long Protocol method signatures, not type suppressions — acceptable. ### Test Quality ✅ - 38 Behave scenarios covering: registration, lookup by name, lookup by category, protocol type correctness, entry point discovery, ACMSPipeline wiring, runtime-checkable verification, idempotency, registry_key consistency, and protocol conformance for all 21 protocol types. - Both positive and negative cases tested (non-existent lookup returns None, no plugins by default). - Stub implementations exercise actual protocol methods, not just isinstance checks. - Feature file is well-structured with clear section headers. ### Correctness ✅ - `register_all_extension_points()` iterates all 30 definitions and returns count — correct. - `get_extension_points_by_category()` uses `setdefault` pattern — correct. - `context_extension_points` property filters by `startswith("context.")` — correct. - Idempotent registration works because `_extension_points` is a dict keyed by name. - Container wiring has graceful degradation with structured logging. ### Commit Message & PR Metadata ✅ - Conventional Changelog format: `feat(plugin): register spec-defined extension points in PluginManager` - `ISSUES CLOSED: #939` footer - `Type/Feature` label, Milestone v3.6.0, `Closes #939` in body - Single commit on branch ### Security ✅ - No secrets or credentials in code. - No user input handling or injection surfaces. ### Non-blocking Observations (follow-up items) 1. **Step file size**: `plugin_extension_points_steps.py` is 787 lines (guideline: <500). The 21 stub classes account for ~350 lines. Recommend extracting stubs to `features/mocks/plugin_extension_stubs.py` in a follow-up. 2. **`TOTAL_EXTENSION_POINTS`**: Hardcoded as `30` rather than derived from `len(_EXTENSION_POINT_DEFS)`. Tests catch drift, but deriving would be more robust. These are housekeeping items that don't affect correctness, spec alignment, or type safety.

freemo merged commit bcf54d08c9 into master

2026-04-02 17:40:19 +00:00

freemo deleted branch feature/plugin-extension-points

2026-04-02 17:40:19 +00:00

freemo referenced this pull request from a commit

2026-04-02 17:40:20 +00:00

Merge pull request 'feat(plugin): register spec-defined extension points in PluginManager' (#1217) from feature/plugin-extension-points into master

freemo referenced this pull request

2026-04-02 17:40:38 +00:00

feat(plugin): register spec-defined extension points in PluginManager #939

freemo approved these changes

2026-04-02 17:44:37 +00:00

freemo left a comment

Independent Code Review — PR #1217: feat(plugin): register spec-defined extension points in PluginManager

✅ APPROVED (Fourth Independent Review)

Reviewed: Full diff (7 files, ~1738 additions), linked issue #939, specification alignment, type safety, test quality, correctness, API consistency, security.

Specification Alignment ✅

All 30 spec-defined extension points are correctly registered with proper names, categories, and Protocol interfaces matching the specification's Extension Points Summary:

Context (12): strategy, 10 pipeline components, storage_backend
Output (3): renderer, materializer, format
Validation (2): runner, rule_provider
Tools (2): provider, middleware
Skills (2): provider, template
Resources (2): resolver, type_handler
A2A (2): transport, extension_method
Events (2): handler, filter
Config (2): source, validator
Safety (1): guardrail

Architecture & Design ✅

ExtensionPointRegistrar Protocol in extension_catalog.py — structural typing decouples the catalog from PluginManager. Clean, SOLID-compliant design.
_ExtensionPointDef with __slots__ — efficient internal descriptor, not exposed in public API.
_category_from_name() — simple, correct, well-documented with doctest examples.
Lazy wiring in container — graceful degradation with try/except and warning log. Correct ordering.
ACMSPipeline integration — optional plugin_manager parameter with discovery-only behavior (no auto-activation). Follows spec's "wired on demand" pattern.
TYPE_CHECKING import for PluginManager in acms_service.py — correctly avoids circular imports.

Type Safety ✅

All 21 @runtime_checkable Protocol classes use collections.abc.Mapping/Sequence for parameter types — good structural typing.
All functions have explicit type annotations (parameters and return types).
No # type: ignore suppressions introduced by this PR. (Pre-existing # type: ignore[dict-item] on BUILTIN_STRATEGIES is not part of this change.)
Two # noqa: E501 are linting suppressions for long Protocol method signatures, not type suppressions — acceptable per project rules.

Test Quality ✅

38 Behave scenarios covering: registration, lookup by name, lookup by category, protocol type correctness, entry point discovery, ACMSPipeline wiring, runtime-checkable verification, idempotency, registry_key consistency, and protocol conformance for all 21 protocol types.
Both positive and negative cases tested (non-existent lookup returns None, no plugins by default).
Stub implementations exercise actual protocol methods, not just isinstance checks.
Feature file is well-structured with clear section headers.

Correctness ✅

register_all_extension_points() iterates all 30 definitions and returns count — correct.
get_extension_points_by_category() uses setdefault pattern — correct.
context_extension_points property filters by startswith("context.") — correct.
Idempotent registration works because _extension_points is a dict keyed by name.
Container wiring has graceful degradation with structured logging.

Commit Message & PR Metadata ✅

Conventional Changelog format: feat(plugin): register spec-defined extension points in PluginManager
ISSUES CLOSED: #939 footer
Type/Feature label, Milestone v3.6.0, Closes #939 in body
Single commit on branch

Security ✅

No secrets or credentials in code.
No user input handling or injection surfaces.

Non-blocking Observations (follow-up items)

Step file size: plugin_extension_points_steps.py is ~787 lines (guideline: <500). The 21 stub classes account for ~350 lines. Recommend extracting stubs to features/mocks/plugin_extension_stubs.py in a follow-up ticket.
TOTAL_EXTENSION_POINTS: Hardcoded as 30 rather than derived from len(_EXTENSION_POINT_DEFS). Tests catch drift, but deriving would be more robust.

These are housekeeping items that don't affect correctness, spec alignment, or type safety.

## Independent Code Review — PR #1217: feat(plugin): register spec-defined extension points in PluginManager ### ✅ APPROVED (Fourth Independent Review) **Reviewed**: Full diff (7 files, ~1738 additions), linked issue #939, specification alignment, type safety, test quality, correctness, API consistency, security. --- ### Specification Alignment ✅ All 30 spec-defined extension points are correctly registered with proper names, categories, and Protocol interfaces matching the specification's Extension Points Summary: - Context (12): strategy, 10 pipeline components, storage_backend - Output (3): renderer, materializer, format - Validation (2): runner, rule_provider - Tools (2): provider, middleware - Skills (2): provider, template - Resources (2): resolver, type_handler - A2A (2): transport, extension_method - Events (2): handler, filter - Config (2): source, validator - Safety (1): guardrail ### Architecture & Design ✅ - **`ExtensionPointRegistrar` Protocol** in `extension_catalog.py` — structural typing decouples the catalog from `PluginManager`. Clean, SOLID-compliant design. - **`_ExtensionPointDef`** with `__slots__` — efficient internal descriptor, not exposed in public API. - **`_category_from_name()`** — simple, correct, well-documented with doctest examples. - **Lazy wiring** in container — graceful degradation with try/except and warning log. Correct ordering. - **ACMSPipeline integration** — optional `plugin_manager` parameter with discovery-only behavior (no auto-activation). Follows spec's "wired on demand" pattern. - **`TYPE_CHECKING` import** for `PluginManager` in `acms_service.py` — correctly avoids circular imports. ### Type Safety ✅ - All 21 `@runtime_checkable` Protocol classes use `collections.abc.Mapping`/`Sequence` for parameter types — good structural typing. - All functions have explicit type annotations (parameters and return types). - No `# type: ignore` suppressions introduced by this PR. (Pre-existing `# type: ignore[dict-item]` on `BUILTIN_STRATEGIES` is not part of this change.) - Two `# noqa: E501` are linting suppressions for long Protocol method signatures, not type suppressions — acceptable per project rules. ### Test Quality ✅ - 38 Behave scenarios covering: registration, lookup by name, lookup by category, protocol type correctness, entry point discovery, ACMSPipeline wiring, runtime-checkable verification, idempotency, registry_key consistency, and protocol conformance for all 21 protocol types. - Both positive and negative cases tested (non-existent lookup returns None, no plugins by default). - Stub implementations exercise actual protocol methods, not just isinstance checks. - Feature file is well-structured with clear section headers. ### Correctness ✅ - `register_all_extension_points()` iterates all 30 definitions and returns count — correct. - `get_extension_points_by_category()` uses `setdefault` pattern — correct. - `context_extension_points` property filters by `startswith("context.")` — correct. - Idempotent registration works because `_extension_points` is a dict keyed by name. - Container wiring has graceful degradation with structured logging. ### Commit Message & PR Metadata ✅ - Conventional Changelog format: `feat(plugin): register spec-defined extension points in PluginManager` - `ISSUES CLOSED: #939` footer - `Type/Feature` label, Milestone v3.6.0, `Closes #939` in body - Single commit on branch ### Security ✅ - No secrets or credentials in code. - No user input handling or injection surfaces. ### Non-blocking Observations (follow-up items) 1. **Step file size**: `plugin_extension_points_steps.py` is ~787 lines (guideline: <500). The 21 stub classes account for ~350 lines. Recommend extracting stubs to `features/mocks/plugin_extension_stubs.py` in a follow-up ticket. 2. **`TOTAL_EXTENSION_POINTS`**: Hardcoded as `30` rather than derived from `len(_EXTENSION_POINT_DEFS)`. Tests catch drift, but deriving would be more robust. These are housekeeping items that don't affect correctness, spec alignment, or type safety.

freemo referenced this pull request

2026-04-02 17:45:12 +00:00

feat(plugin): register spec-defined extension points in PluginManager #939