Developer
Pavel Feldman
pavel.feldman@gmail.com
Performance
YoY:+68%Key patterns and highlights from this developer's activity.
Breakdown of growth, maintenance, and fixes effort over time.
Bugs introduced vs. fixed over time.
Reclassifies engineering effort based on bug attribution. Commits that introduced bugs are retrospectively counted as poor investments.
Investment Quality reclassifies engineering effort based on bug attribution data. Commits identified as buggy origins (those that introduced bugs later fixed by someone) have their grow and maintenance time moved into the Wasted Time category. Their waste (fix commits) remains counted as productive. All other commits retain their standard classification: grow is productive, maintenance is maintenance, and waste (fixes) is productive.
The standard model classifies commits as Growth, Maintenance, or Fixes. Investment Quality adds a quality lens: a commit that introduced a bug is retrospectively counted as a poor investment — the engineering time spent on it was wasted because it ultimately required additional fix work. Fix commits (Fixes in the standard model) are reframed as productive, because fixing bugs is valuable work.
Currently computed client-side from commit and bug attribution data. Ideal server-side endpoint:
POST /v1/organizations/{orgId}/investment-quality
Content-Type: application/json
Request:
{
"startTime": "2025-01-01T00:00:00Z",
"endTime": "2025-12-31T23:59:59Z",
"bucketSize": "BUCKET_SIZE_MONTH",
"groupBy": ["repository_id" | "deliverer_email"]
}
Response:
{
"productivePct": 74,
"maintenancePct": 18,
"wastedPct": 8,
"buckets": [
{
"bucketStart": "2025-01-01T00:00:00Z",
"productive": 4.2,
"maintenance": 1.8,
"wasted": 0.6
}
]
}Latest analyzed commits from this developer.
| Hash | Message | Date | Files |
|---|
Commit activity distribution by hour and day of week. Shows when this developer is most active.
Developers who frequently work on the same files and symbols. Higher score means stronger code collaboration.
| Effort |
|---|
| cec7b21a | This commit provides **documentation updates** to the release notes across multiple language bindings, addressing previous inaccuracies and omissions. It **clarifies** the descriptions for the `Page.screencast` API and `Browser.bind` connection methods, while also **expanding** on the `playwright-cli show` dashboard. These **maintenance** changes improve the accuracy and detail of the **Playwright release notes** for C#, Java, JavaScript, and Python users, ensuring better understanding of these specific features. | Mar 31 | 4 | maint |
| f926e4c9 | This commit introduces **new public APIs**, `browser.bind` and `browser.unbind`, within **Playwright Core**, enabling programmatic registration and unregistration of browser instances for enhanced integration with the **Playwright Dashboard**. It includes a significant **refactoring** effort to standardize browser connection parameters, replacing `pipeName` and `attach` with `endpoint` across various internal modules, **CLI tools**, and the **Playwright protocol**. This change improves consistency and clarity in managing browser server connections, with updates to `startServer` and `serverRegistry` to support WebSocket binding. Extensive **documentation updates** across all language bindings and release notes accompany these changes, highlighting the new API and dashboard observability features. | Mar 31 | 28 | maint |
| 6896c348 | This commit introduces a **new capability** to the **Playwright Trace Viewer**, enabling users to directly open `.trace` files without the need for manual `.link` indirection files. The system now automatically generates and utilizes these `.link` files internally when a `.trace` file is provided, significantly simplifying the **developer experience** for trace analysis. This **feature enhancement** primarily impacts the **tracing utilities** within `playwright-core`, specifically modifying `traceUtils.ts` to manage `.link` file creation and `traceLoader.ts` to accept a direct trace file path. Additionally, it includes **fixes** for CLI program error handling and robust tracing lifecycle management in `tracing.ts`. The overall scope is to provide a smoother and more reliable workflow for viewing Playwright traces. | Mar 31 | 7 | maint |
| 9149caf4 | This commit introduces the new **`Screencast.showActions` and `Screencast.hideActions` API** to provide explicit control over action annotations during screencast recording. This **new feature** allows users to programmatically manage the visibility, styling, and positioning of visual cues for user interactions. It involves a significant **refactoring** of existing annotation mechanisms, standardizing screencast-related overlay methods with a `screencast` prefix across the **Playwright core, protocol definitions, and video recording options**. Extensive **documentation updates** and **new tests** ensure comprehensive coverage and clear guidance for this enhanced functionality across all language bindings. | Mar 31 | 25 | maint |
| 9094a541 | test: roll stable-test-runner to 1.59.0-beta-1774915887000 (#39946) | Mar 31 | 2 | – |
| bba16283 | chore: roll browser patches from upstream (#39944) | Mar 31 | 0 | – |
| 9295cb4f | chore: mark v1.59 (#39943) | Mar 31 | 16 | – |
| c3a74dca | This commit **updates the project documentation** by adding the **release notes for version 1.59** to `docs/src/release-notes-js.md`. It details significant new features and improvements, including a **new screencast API**, **agentic tools**, support for the **`await using` syntax**, and various **locator enhancements**. This **documentation update** ensures users are informed about the latest capabilities and changes in the new release, providing essential information for adopting new features and understanding API modifications. | Mar 31 | 2 | maint |
| f72a639f | chore: merge screencast start/startRecording (#39937) | Mar 30 | 21 | maint |
| 02b26b32 | This commit introduces a **significant refactoring and enhancement** to the **screencasting and video recording subsystems**. The user-facing **screencast API** is updated to accept a new `quality` option and renames `preferredSize` to `size` for clearer configuration, reflected in `docs/src/api/class-screencast.md` and `packages/playwright-core/src/client/screencast.ts`. Internally, the entire screencast mechanism has been refactored, making many related methods synchronous across **Chromium, Firefox, and WebKit browser implementations**, and introducing new `VideoRecorder` and `FfmpegVideoRecorder` classes to manage automatic video recording more robustly. This overhaul improves the clarity and control over video output, affecting how screencasts are configured and recorded across the entire Playwright core. | Mar 30 | 27 | maint |
| facd8429 | This commit **refactors** the **video recording and overlay management** functionality by introducing and migrating to a dedicated `Screencast` API. It implements new methods like `startRecording`, `stopRecording`, `showOverlay`, and `hideOverlays` within the `Screencast` class, while **removing `Page.overlay` documentation** and updating `Page.video` descriptions. The change involves **migrating internal backend tools, CLI commands, and Playwright library features** (e.g., `toHaveScreenshot` and `installScreencastTitleUpdater`) to utilize this new `page.screencast` API for all related operations. This **architectural shift** centralizes control over video and visual overlays, providing a more consistent and extensible interface, with all relevant **documentation and tests updated** accordingly. | Mar 28 | 23 | maint |
| 33fd4917 | This commit **refactors** the **Multi-Client Protocol (MCP) configuration resolution logic** to enhance testability and **consolidates its test suite**. The `resolveCLIConfigForMCP` and `resolveCLIConfigForCLI` functions in `packages/playwright-core/src/tools/mcp/config.ts` now accept an optional environment object, allowing for direct injection of environment variables during testing. This **refactoring** enables comprehensive and consolidated tests in `tests/mcp/config-resolve.spec.ts`, specifically covering environment variable injection scenarios. The changes significantly improve the **robustness and maintainability** of the MCP's configuration handling by ensuring thorough testing of its resolution process. | Mar 28 | 5 | maint |
| 49268985 | fix(config): refactor config resolution into separate MCP and CLI paths (#39892) | Mar 27 | 7 | maint |
| a981727a | This commit provides a **bug fix** for the **Playwright test runner**'s user interface, specifically addressing the visual positioning of **test overlays**. It corrects an issue where annotations were not displayed accurately on screen by adjusting the pixel offset within the `createTestOverlay` function in `packages/playwright/src/index.ts`. The offset for these visual annotations is updated from 3px to 6px, resolving the display discrepancy. This ensures that test annotations are rendered correctly, significantly improving the visual accuracy and usability of the test runner's feedback. | Mar 27 | 3 | waste |
| 807c7596 | feat(trace): add 'trace close' command (#39903) | Mar 27 | 4 | grow |
| 6ffd90eb | This commit **fixes documentation** for the **Playwright CLI's `video-stop` command**, ensuring users are provided with accurate usage examples. Specifically, the example within `packages/playwright-core/src/tools/cli-client/skill/SKILL.md` has been updated to correctly demonstrate the `--filename` flag. This **documentation fix** prevents potential confusion or errors for users attempting to save video recordings via the command line, improving the clarity and correctness of the CLI's usage instructions. | Mar 27 | 1 | maint |
| 9377dab3 | This commit introduces a **new feature** to enhance **video recording functionality** by allowing users to add **chapter markers**. It implements a new `videoChapter` tool in `packages/playwright-core/src/tools/backend/video.ts` and exposes it as the `video-chapter` command within the **CLI daemon**. This enables users to easily mark significant moments in recorded sessions, improving navigation and analysis. The change also includes minor **refactoring**, renaming `startVideo` to `videoStart` and `stopVideo` to `videoStop`, and updates all relevant documentation and tests for the **CLI**. | Mar 27 | 6 | grow |
| a8ea6558 | This commit introduces a **new module load profiling mechanism** for Playwright, activated by the `PW_INSTRUMENT_MODULES` environment variable, to help identify and optimize startup performance across the **Playwright-core CLI** and **Playwright test runner**. It also performs a significant **refactoring** effort by implementing **dynamic imports** for `yazl` and `yauzl` in numerous components, including **HAR recording**, **zip utilities**, **Blob and HTML reporters**, and **test tracing**, which collectively **reduces the initial bundle size** and improves overall startup efficiency. Furthermore, a **new internal JSON schema validation utility** is added to `playwright-core`, replacing external `Zod` usage for **test detail validation** in `playwright`. These changes enhance **performance diagnostics** and **optimize the core Playwright bundle**. | Mar 27 | 19 | maint |
| d665c3c9 | This commit **vendors the `zod` library** directly into the `playwright-core` package, establishing a dedicated `zodBundle` for internal consumption. It then **refactors** numerous internal modules across the **`playwright-core`** and **`playwright`** packages, including **CLI tools** and **backend components**, to import `zod` from this new bundle instead of the previous `mcpBundle`. This **build system chore** and **refactoring** streamlines dependency management for `zod`, ensuring consistent usage and reducing indirect dependencies. The change primarily affects internal build processes and module imports, with no direct impact on external API consumers. Documentation examples in `.claude/skills/playwright-dev/tools.md` are also updated to reflect the new import paths. | Mar 26 | 53 | maint |
| 9232953e | chore(build): lazy-load trace CLI modules and convert dynamic import to require (#39877) | Mar 26 | 10 | grow |
This commit provides **documentation updates** to the release notes across multiple language bindings, addressing previous inaccuracies and omissions. It **clarifies** the descriptions for the `Page.screencast` API and `Browser.bind` connection methods, while also **expanding** on the `playwright-cli show` dashboard. These **maintenance** changes improve the accuracy and detail of the **Playwright release notes** for C#, Java, JavaScript, and Python users, ensuring better understanding of these specific features.
This commit introduces **new public APIs**, `browser.bind` and `browser.unbind`, within **Playwright Core**, enabling programmatic registration and unregistration of browser instances for enhanced integration with the **Playwright Dashboard**. It includes a significant **refactoring** effort to standardize browser connection parameters, replacing `pipeName` and `attach` with `endpoint` across various internal modules, **CLI tools**, and the **Playwright protocol**. This change improves consistency and clarity in managing browser server connections, with updates to `startServer` and `serverRegistry` to support WebSocket binding. Extensive **documentation updates** across all language bindings and release notes accompany these changes, highlighting the new API and dashboard observability features.
This commit introduces a **new capability** to the **Playwright Trace Viewer**, enabling users to directly open `.trace` files without the need for manual `.link` indirection files. The system now automatically generates and utilizes these `.link` files internally when a `.trace` file is provided, significantly simplifying the **developer experience** for trace analysis. This **feature enhancement** primarily impacts the **tracing utilities** within `playwright-core`, specifically modifying `traceUtils.ts` to manage `.link` file creation and `traceLoader.ts` to accept a direct trace file path. Additionally, it includes **fixes** for CLI program error handling and robust tracing lifecycle management in `tracing.ts`. The overall scope is to provide a smoother and more reliable workflow for viewing Playwright traces.
This commit introduces the new **`Screencast.showActions` and `Screencast.hideActions` API** to provide explicit control over action annotations during screencast recording. This **new feature** allows users to programmatically manage the visibility, styling, and positioning of visual cues for user interactions. It involves a significant **refactoring** of existing annotation mechanisms, standardizing screencast-related overlay methods with a `screencast` prefix across the **Playwright core, protocol definitions, and video recording options**. Extensive **documentation updates** and **new tests** ensure comprehensive coverage and clear guidance for this enhanced functionality across all language bindings.
test: roll stable-test-runner to 1.59.0-beta-1774915887000 (#39946)
chore: roll browser patches from upstream (#39944)
chore: mark v1.59 (#39943)
This commit **updates the project documentation** by adding the **release notes for version 1.59** to `docs/src/release-notes-js.md`. It details significant new features and improvements, including a **new screencast API**, **agentic tools**, support for the **`await using` syntax**, and various **locator enhancements**. This **documentation update** ensures users are informed about the latest capabilities and changes in the new release, providing essential information for adopting new features and understanding API modifications.
chore: merge screencast start/startRecording (#39937)
This commit introduces a **significant refactoring and enhancement** to the **screencasting and video recording subsystems**. The user-facing **screencast API** is updated to accept a new `quality` option and renames `preferredSize` to `size` for clearer configuration, reflected in `docs/src/api/class-screencast.md` and `packages/playwright-core/src/client/screencast.ts`. Internally, the entire screencast mechanism has been refactored, making many related methods synchronous across **Chromium, Firefox, and WebKit browser implementations**, and introducing new `VideoRecorder` and `FfmpegVideoRecorder` classes to manage automatic video recording more robustly. This overhaul improves the clarity and control over video output, affecting how screencasts are configured and recorded across the entire Playwright core.
This commit **refactors** the **video recording and overlay management** functionality by introducing and migrating to a dedicated `Screencast` API. It implements new methods like `startRecording`, `stopRecording`, `showOverlay`, and `hideOverlays` within the `Screencast` class, while **removing `Page.overlay` documentation** and updating `Page.video` descriptions. The change involves **migrating internal backend tools, CLI commands, and Playwright library features** (e.g., `toHaveScreenshot` and `installScreencastTitleUpdater`) to utilize this new `page.screencast` API for all related operations. This **architectural shift** centralizes control over video and visual overlays, providing a more consistent and extensible interface, with all relevant **documentation and tests updated** accordingly.
This commit **refactors** the **Multi-Client Protocol (MCP) configuration resolution logic** to enhance testability and **consolidates its test suite**. The `resolveCLIConfigForMCP` and `resolveCLIConfigForCLI` functions in `packages/playwright-core/src/tools/mcp/config.ts` now accept an optional environment object, allowing for direct injection of environment variables during testing. This **refactoring** enables comprehensive and consolidated tests in `tests/mcp/config-resolve.spec.ts`, specifically covering environment variable injection scenarios. The changes significantly improve the **robustness and maintainability** of the MCP's configuration handling by ensuring thorough testing of its resolution process.
fix(config): refactor config resolution into separate MCP and CLI paths (#39892)
This commit provides a **bug fix** for the **Playwright test runner**'s user interface, specifically addressing the visual positioning of **test overlays**. It corrects an issue where annotations were not displayed accurately on screen by adjusting the pixel offset within the `createTestOverlay` function in `packages/playwright/src/index.ts`. The offset for these visual annotations is updated from 3px to 6px, resolving the display discrepancy. This ensures that test annotations are rendered correctly, significantly improving the visual accuracy and usability of the test runner's feedback.
feat(trace): add 'trace close' command (#39903)
This commit **fixes documentation** for the **Playwright CLI's `video-stop` command**, ensuring users are provided with accurate usage examples. Specifically, the example within `packages/playwright-core/src/tools/cli-client/skill/SKILL.md` has been updated to correctly demonstrate the `--filename` flag. This **documentation fix** prevents potential confusion or errors for users attempting to save video recordings via the command line, improving the clarity and correctness of the CLI's usage instructions.
This commit introduces a **new feature** to enhance **video recording functionality** by allowing users to add **chapter markers**. It implements a new `videoChapter` tool in `packages/playwright-core/src/tools/backend/video.ts` and exposes it as the `video-chapter` command within the **CLI daemon**. This enables users to easily mark significant moments in recorded sessions, improving navigation and analysis. The change also includes minor **refactoring**, renaming `startVideo` to `videoStart` and `stopVideo` to `videoStop`, and updates all relevant documentation and tests for the **CLI**.
This commit introduces a **new module load profiling mechanism** for Playwright, activated by the `PW_INSTRUMENT_MODULES` environment variable, to help identify and optimize startup performance across the **Playwright-core CLI** and **Playwright test runner**. It also performs a significant **refactoring** effort by implementing **dynamic imports** for `yazl` and `yauzl` in numerous components, including **HAR recording**, **zip utilities**, **Blob and HTML reporters**, and **test tracing**, which collectively **reduces the initial bundle size** and improves overall startup efficiency. Furthermore, a **new internal JSON schema validation utility** is added to `playwright-core`, replacing external `Zod` usage for **test detail validation** in `playwright`. These changes enhance **performance diagnostics** and **optimize the core Playwright bundle**.
This commit **vendors the `zod` library** directly into the `playwright-core` package, establishing a dedicated `zodBundle` for internal consumption. It then **refactors** numerous internal modules across the **`playwright-core`** and **`playwright`** packages, including **CLI tools** and **backend components**, to import `zod` from this new bundle instead of the previous `mcpBundle`. This **build system chore** and **refactoring** streamlines dependency management for `zod`, ensuring consistent usage and reducing indirect dependencies. The change primarily affects internal build processes and module imports, with no direct impact on external API consumers. Documentation examples in `.claude/skills/playwright-dev/tools.md` are also updated to reflect the new import paths.
chore(build): lazy-load trace CLI modules and convert dynamic import to require (#39877)