Developer
Jeff See
jeffsee.55@gmail.com
Performance
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 | Effort |
|---|---|---|---|---|
| 2b7c95c | This commit **fixes a critical issue** where **post-build generated public files**, such as service workers, were not included in the **V3 build output** for Git-driven deployments, resulting in 404 errors. It modifies the **`@vercel/next` build process** to ensure that any files added to the `public/` directory *after* `next build` completes are correctly copied into the `.vercel/output/static/` directory. This **bug fix** ensures that all necessary static assets are properly deployed, improving the reliability of applications using dynamic public file generation and resolving 404s for these assets. | Mar 31 | 2 | waste |
| 9a7d4c5 | This commit delivers a crucial **bug fix** for the **backends** module, resolving a build crash that occurred when the **rolldown plugin** encountered unresolvable workspace dependencies. The issue stemmed from the plugin adding bogus paths for these dependencies to `localBuildFiles`, leading to failures in the **NFT (Next.js File Trace)** process. The fix modifies the `rolldown` plugin to correctly skip these invalid paths and also refines the `isTypeScriptFile` utility in `nft.ts` to exclude `.d.ts` files, aligning with standard TypeScript behavior. This significantly enhances **build stability** and **monorepo compatibility**, preventing crashes in projects with complex dependency structures. Comprehensive new test fixtures and assertions have been added to ensure robust coverage for workspace dependency resolution. | Mar 26 | 12 | maint |
| 75cf382 | This commit **enhances the CI/CD pipeline's robustness** by preventing pull requests from being merged if the initial "Find Changes" GitHub Actions job fails. Previously, a failure in the `setup` job (which identifies changes) would not block PR merges because the `summary` job, responsible for merge checks, would still pass. This **configuration update** modifies the `.github/workflows/test.yml` and `.github/workflows/test-e2e.yml` files to add the `setup` job as a dependency for the `summary` job. Consequently, the **PR mergeability check** will now correctly fail if the `setup` job encounters an issue, ensuring that only thoroughly validated changes can be integrated into the codebase. | Mar 23 | 2 | maint |
| 69cd8ea | This commit performs a **dependency update**, upgrading the `@vercel/nft` package from version `1.4.0` to `1.5.0`. This **maintenance** task affects multiple **framework integration packages**, specifically `backends`, `express`, `hono`, `next`, `node`, `redwood`, and `remix`, by updating their respective `package.json` files. The update ensures these modules leverage the latest features, bug fixes, and performance improvements provided by the new `@vercel/nft` version, enhancing overall stability and functionality across the affected subsystems. | Mar 23 | 9 | maint |
| bb5277a | This commit performs a **dependency update** across multiple framework integration packages. It upgrades the `@vercel/nft` dependency to version `1.4.0` in `packages/backends`, `packages/express`, `packages/hono`, `packages/next`, `packages/node`, `packages/redwood`, and `packages/remix`. This **maintenance** task ensures all relevant **backend and framework integration modules** are using the latest version of the dependency. The update standardizes the `nft` version across the project, potentially bringing performance improvements or bug fixes to the build process for applications utilizing these packages. | Mar 19 | 9 | maint |
| 857e891 | This commit **improves the reliability and completeness of CLI evaluation result reporting** by ensuring that all evaluation outcomes, including failures, are consistently uploaded to the **centralized application**. It modifies the **`cli-evals.yml` GitHub Actions workflow** to use `if: always()` for the upload step, guaranteeing data transmission regardless of prior step success. This **maintenance** change also removes a redundant local logging step that previously only captured failures, streamlining the workflow. The primary impact is a more comprehensive and consistent view of all evaluation runs within the central app, enhancing overall visibility and debugging capabilities. | Mar 13 | 2 | maint |
| 6ff9b07 | This commit **fixes** a critical issue within the **CI/CD pipeline's `ci-doctor` workflow** by correcting its trigger configuration. The `ci-doctor` previously failed to activate because it referenced incorrect workflow names (`test-e2e`, `test`) instead of the actual 'E2E Tests' and 'Unit Tests' as defined in the GitHub Actions `name:` fields. This **bug fix** updates the trigger in `.github/workflows/ci-doctor.md` and recompiles `ci-doctor.lock.yml`, ensuring the `ci-doctor` now properly monitors and reacts to failures in the **E2E and Unit Test suites**, thereby improving **CI health monitoring**. Additionally, a **new `agentics-maintenance.yml` workflow** is introduced to automate various repository cleanup tasks. | Mar 12 | 3 | waste |
| ccf3ab3 | This commit **fixes** the **`ci-doctor` agentic workflow**, enabling it to trigger and execute as intended. Previously, the workflow was non-functional due to a missing compiled `.lock.yml` file and an invalid `shared/mood.md` import that blocked compilation. The invalid import was removed, and the necessary **GitHub Actions lock files** (`actions-lock.json` and `ci-doctor.lock.yml`) were generated, ensuring the workflow's dependencies are correctly specified. This **maintenance** work ensures the `ci-doctor` workflow can now properly run, improving CI health monitoring and issue detection. | Mar 12 | 4 | waste |
| b5542a6 | This commit provides a **bug fix** for **`@vercel/build-utils`** to gracefully handle `EEXIST` errors during symlink creation, specifically in **monorepo builds using `--standalone` mode**. It modifies `packages/build-utils/src/fs/download.ts` to catch `EEXIST` errors, allowing existing symlinks with matching targets to be skipped, or replaced if their targets differ. This addresses a race condition where multiple Lambda/Edge Functions might attempt to create the same symlink, preventing build failures. The change ensures **idempotent symlink creation** and improves the **robustness and reliability of builds** for shared `node_modules` structures. New unit tests in `unit.download.test.ts` verify this behavior. | Mar 10 | 3 | waste |
| 14e7dcf | This commit **introduces documentation** for a new **CI Failure Doctor agent workflow**, designed to automatically investigate failed CI runs. It adds a new markdown file, `.github/workflows/ci-doctor.md`, which defines this **new capability** for the **CI/CD system**. Additionally, a changeset file, `.changeset/ten-islands-promise.md`, is included for versioning purposes. This work primarily involves **documentation and configuration**, with no changes to application code, enhancing the project's ability to **diagnose CI issues**. | Mar 3 | 2 | grow |
| f1e8c97 | This commit **fixes a critical routing bug** that caused dynamic **Next.js App Router API routes** (e.g., `/api/blog/posts/[id]`) to incorrectly return 404s on Vercel deployments. It modifies the **`detect-builders` module's routing logic** within `getRouteResult` to conditionally skip adding a catch-all `/api` 404 rewrite when Next.js is detected as the frontend. This **high-risk change** ensures that Next.js properly handles its own API routes, preventing erroneous 404s and improving the reliability of **Vercel's zero-config routing** for Next.js applications. New tests were added to verify correct behavior for both Next.js and non-Next.js frontends. | Mar 2 | 4 | waste |
| ca4eee7 | This commit **adds new evaluation tests** for the **`vc curl`** command within the **`packages/cli/evals`** module. Two new evaluation variants, `curl/explicit` and `curl/implicit`, are introduced to assess how an agent interacts with the command, covering both direct invocation and inferring its use from a vague prompt. This **enhances the testing capabilities** for the CLI, specifically ensuring the agent correctly invokes `vc curl` with non-interactive flags. The new evals integrate seamlessly with the existing ephemeral project setup, expanding coverage for the **CLI agent's command understanding**. | Mar 2 | 8 | maint |
| 0c4ebf1 | This commit introduces a **new capability** to the project's **CI/CD pipeline** by adding a step to upload evaluation results. It modifies `.github/workflows/cli-evals.yml` to include a new GitHub Actions step that leverages a newly created **Node.js script** (`packages/cli/evals/scripts/transform-agent-eval-to-canonical.js`). This script is responsible for transforming agent evaluation data and uploading it to a centralized ingest URL, thereby enabling **centralized collection and analysis of evaluation results** without affecting application code or core services. This infrastructure tooling enhances observability for agent evaluations. | Feb 28 | 3 | grow |
| 3043ce0 | This commit provides a **fix** for **public static asset handling** when deploying applications with **experimental backends**. It **enhances** the `detectBuilders` function within the **`fs-detectors` package** to correctly identify and include `@vercel/static` for projects leveraging these new runtime types. This ensures that **public files** are properly detected and served, preventing deployment issues for applications built with **experimental backends**. The **bug fix** also includes a **refactoring** of direct string comparisons to use an `isOfficialRuntime()` helper and adds **new test cases** to validate the extended functionality. | Feb 28 | 3 | maint |
| 28bdc6d | This commit introduces **new evaluation tests** and their associated **fixtures** for the `deploy` and `init` commands within the **`packages/cli/evals`** module. It adds comprehensive test files (`EVAL.ts`), prompt documentation (`PROMPT.md`), and complete fixture environments (including `package.json`, `tsconfig.json`, and source files) for both `_deploy` and `init` functionalities. This **new capability** significantly enhances the automated testing framework, ensuring the correct behavior of these critical CLI commands. Specifically, it verifies aspects like build completion and project inspection for `deploy`, and project file existence for `init`. An experiment configuration in `cli-with-skill.ts` is also updated to leverage these new evaluations. | Feb 28 | 13 | maint |
| 9a63585 | This commit introduces **support for function configuration overrides** within the `@vercel/backends` builder, allowing external settings to dictate Node.js Lambda options during the build process. It **enhances flexibility** by spreading `functionConfigOverrides` into `NodejsLambda` constructors and exporting `NodejsLambdaOptions` from `build-utils`. Additionally, it **refactors the `fs-detectors` module** by modifying `checkUnusedFunctions` to skip validation for unused backend functions, streamlining the build pipeline. This **new capability** enables more granular control over backend deployments and resolves issues with previously flagged configurations. | Feb 25 | 7 | waste |
| 9d08724 | This commit **re-architects the evaluation authentication system** within the **`packages/cli/evals` subsystem**, transitioning from Docker to **Vercel sandboxes**. It introduces a new mechanism to automatically provision `VERCEL_OIDC_TOKEN` for sandbox authorization, replacing the `AI_GATEWAY_API_KEY` and simplifying local setup. The change involves sourcing `VERCEL_TOKEN` from the host or environment, and hardcoding specific team/project IDs for the sandbox environment. This **high-risk infrastructure change** significantly impacts how evaluation environments are authenticated and configured, streamlining the process while introducing new credential handling. | Feb 24 | 14 | grow |
| 57f59c0 | This commit **enhances the Vercel CLI documentation** by adding comprehensive guides for deploying **Node.js backends**, **monorepos**, and applications using the **Bun runtime**. It introduces new reference markdown files (`bun.md`, `monorepos.md`, `node-backends.md`) detailing setup and usage, including examples for frameworks like Express, Hono, Elysia, Next.js, Turborepo, and Nx. The `SKILL.md` routing table is updated to link these new resources, providing users with clearer instructions and expanding the discoverability of Vercel's capabilities for these modern development patterns. This is a **documentation update** that significantly improves the user experience for developers working with these technologies. | Feb 20 | 5 | maint |
| 9e7da73 | This commit introduces a **new capability** to the **Related Projects** feature, enabling support for a **custom environment alias** in preview deployments. It adds an optional `customEnvironment` property to the `VercelRelatedProject` type within `packages/related-projects/src/types.ts`. The host resolution logic in `packages/related-projects/src/with-related-project.ts` is updated to prioritize this custom alias over the branch name, providing greater flexibility for users. This **enhancement** ensures that if a custom environment is specified, it will be used for preview host resolution. Comprehensive test cases have been added in `packages/related-projects/test/with-related-project.test.ts` to validate this new behavior. | Feb 20 | 4 | grow |
| 847ea59 | This commit **reverts previous changes** to the **release workflow**, effectively **removing conditional guards and environment protection** from the automated release process. Specifically, it eliminates the `if: startsWith(...)` condition that gated release jobs to specific commits and removes the `environment: release` protection from the release job in `.github/workflows/release.yml`. This **maintenance** action also simplifies the summary job to always pass, removing its failure detection logic. The primary impact is the **removal of safeguards** that prevented unintended releases, increasing the risk of unapproved deployments. | Feb 19 | 3 | maint |
This commit **fixes a critical issue** where **post-build generated public files**, such as service workers, were not included in the **V3 build output** for Git-driven deployments, resulting in 404 errors. It modifies the **`@vercel/next` build process** to ensure that any files added to the `public/` directory *after* `next build` completes are correctly copied into the `.vercel/output/static/` directory. This **bug fix** ensures that all necessary static assets are properly deployed, improving the reliability of applications using dynamic public file generation and resolving 404s for these assets.
This commit delivers a crucial **bug fix** for the **backends** module, resolving a build crash that occurred when the **rolldown plugin** encountered unresolvable workspace dependencies. The issue stemmed from the plugin adding bogus paths for these dependencies to `localBuildFiles`, leading to failures in the **NFT (Next.js File Trace)** process. The fix modifies the `rolldown` plugin to correctly skip these invalid paths and also refines the `isTypeScriptFile` utility in `nft.ts` to exclude `.d.ts` files, aligning with standard TypeScript behavior. This significantly enhances **build stability** and **monorepo compatibility**, preventing crashes in projects with complex dependency structures. Comprehensive new test fixtures and assertions have been added to ensure robust coverage for workspace dependency resolution.
This commit **enhances the CI/CD pipeline's robustness** by preventing pull requests from being merged if the initial "Find Changes" GitHub Actions job fails. Previously, a failure in the `setup` job (which identifies changes) would not block PR merges because the `summary` job, responsible for merge checks, would still pass. This **configuration update** modifies the `.github/workflows/test.yml` and `.github/workflows/test-e2e.yml` files to add the `setup` job as a dependency for the `summary` job. Consequently, the **PR mergeability check** will now correctly fail if the `setup` job encounters an issue, ensuring that only thoroughly validated changes can be integrated into the codebase.
This commit performs a **dependency update**, upgrading the `@vercel/nft` package from version `1.4.0` to `1.5.0`. This **maintenance** task affects multiple **framework integration packages**, specifically `backends`, `express`, `hono`, `next`, `node`, `redwood`, and `remix`, by updating their respective `package.json` files. The update ensures these modules leverage the latest features, bug fixes, and performance improvements provided by the new `@vercel/nft` version, enhancing overall stability and functionality across the affected subsystems.
This commit performs a **dependency update** across multiple framework integration packages. It upgrades the `@vercel/nft` dependency to version `1.4.0` in `packages/backends`, `packages/express`, `packages/hono`, `packages/next`, `packages/node`, `packages/redwood`, and `packages/remix`. This **maintenance** task ensures all relevant **backend and framework integration modules** are using the latest version of the dependency. The update standardizes the `nft` version across the project, potentially bringing performance improvements or bug fixes to the build process for applications utilizing these packages.
This commit **improves the reliability and completeness of CLI evaluation result reporting** by ensuring that all evaluation outcomes, including failures, are consistently uploaded to the **centralized application**. It modifies the **`cli-evals.yml` GitHub Actions workflow** to use `if: always()` for the upload step, guaranteeing data transmission regardless of prior step success. This **maintenance** change also removes a redundant local logging step that previously only captured failures, streamlining the workflow. The primary impact is a more comprehensive and consistent view of all evaluation runs within the central app, enhancing overall visibility and debugging capabilities.
This commit **fixes** a critical issue within the **CI/CD pipeline's `ci-doctor` workflow** by correcting its trigger configuration. The `ci-doctor` previously failed to activate because it referenced incorrect workflow names (`test-e2e`, `test`) instead of the actual 'E2E Tests' and 'Unit Tests' as defined in the GitHub Actions `name:` fields. This **bug fix** updates the trigger in `.github/workflows/ci-doctor.md` and recompiles `ci-doctor.lock.yml`, ensuring the `ci-doctor` now properly monitors and reacts to failures in the **E2E and Unit Test suites**, thereby improving **CI health monitoring**. Additionally, a **new `agentics-maintenance.yml` workflow** is introduced to automate various repository cleanup tasks.
This commit **fixes** the **`ci-doctor` agentic workflow**, enabling it to trigger and execute as intended. Previously, the workflow was non-functional due to a missing compiled `.lock.yml` file and an invalid `shared/mood.md` import that blocked compilation. The invalid import was removed, and the necessary **GitHub Actions lock files** (`actions-lock.json` and `ci-doctor.lock.yml`) were generated, ensuring the workflow's dependencies are correctly specified. This **maintenance** work ensures the `ci-doctor` workflow can now properly run, improving CI health monitoring and issue detection.
This commit provides a **bug fix** for **`@vercel/build-utils`** to gracefully handle `EEXIST` errors during symlink creation, specifically in **monorepo builds using `--standalone` mode**. It modifies `packages/build-utils/src/fs/download.ts` to catch `EEXIST` errors, allowing existing symlinks with matching targets to be skipped, or replaced if their targets differ. This addresses a race condition where multiple Lambda/Edge Functions might attempt to create the same symlink, preventing build failures. The change ensures **idempotent symlink creation** and improves the **robustness and reliability of builds** for shared `node_modules` structures. New unit tests in `unit.download.test.ts` verify this behavior.
This commit **introduces documentation** for a new **CI Failure Doctor agent workflow**, designed to automatically investigate failed CI runs. It adds a new markdown file, `.github/workflows/ci-doctor.md`, which defines this **new capability** for the **CI/CD system**. Additionally, a changeset file, `.changeset/ten-islands-promise.md`, is included for versioning purposes. This work primarily involves **documentation and configuration**, with no changes to application code, enhancing the project's ability to **diagnose CI issues**.
This commit **fixes a critical routing bug** that caused dynamic **Next.js App Router API routes** (e.g., `/api/blog/posts/[id]`) to incorrectly return 404s on Vercel deployments. It modifies the **`detect-builders` module's routing logic** within `getRouteResult` to conditionally skip adding a catch-all `/api` 404 rewrite when Next.js is detected as the frontend. This **high-risk change** ensures that Next.js properly handles its own API routes, preventing erroneous 404s and improving the reliability of **Vercel's zero-config routing** for Next.js applications. New tests were added to verify correct behavior for both Next.js and non-Next.js frontends.
This commit **adds new evaluation tests** for the **`vc curl`** command within the **`packages/cli/evals`** module. Two new evaluation variants, `curl/explicit` and `curl/implicit`, are introduced to assess how an agent interacts with the command, covering both direct invocation and inferring its use from a vague prompt. This **enhances the testing capabilities** for the CLI, specifically ensuring the agent correctly invokes `vc curl` with non-interactive flags. The new evals integrate seamlessly with the existing ephemeral project setup, expanding coverage for the **CLI agent's command understanding**.
This commit introduces a **new capability** to the project's **CI/CD pipeline** by adding a step to upload evaluation results. It modifies `.github/workflows/cli-evals.yml` to include a new GitHub Actions step that leverages a newly created **Node.js script** (`packages/cli/evals/scripts/transform-agent-eval-to-canonical.js`). This script is responsible for transforming agent evaluation data and uploading it to a centralized ingest URL, thereby enabling **centralized collection and analysis of evaluation results** without affecting application code or core services. This infrastructure tooling enhances observability for agent evaluations.
This commit provides a **fix** for **public static asset handling** when deploying applications with **experimental backends**. It **enhances** the `detectBuilders` function within the **`fs-detectors` package** to correctly identify and include `@vercel/static` for projects leveraging these new runtime types. This ensures that **public files** are properly detected and served, preventing deployment issues for applications built with **experimental backends**. The **bug fix** also includes a **refactoring** of direct string comparisons to use an `isOfficialRuntime()` helper and adds **new test cases** to validate the extended functionality.
This commit introduces **new evaluation tests** and their associated **fixtures** for the `deploy` and `init` commands within the **`packages/cli/evals`** module. It adds comprehensive test files (`EVAL.ts`), prompt documentation (`PROMPT.md`), and complete fixture environments (including `package.json`, `tsconfig.json`, and source files) for both `_deploy` and `init` functionalities. This **new capability** significantly enhances the automated testing framework, ensuring the correct behavior of these critical CLI commands. Specifically, it verifies aspects like build completion and project inspection for `deploy`, and project file existence for `init`. An experiment configuration in `cli-with-skill.ts` is also updated to leverage these new evaluations.
This commit introduces **support for function configuration overrides** within the `@vercel/backends` builder, allowing external settings to dictate Node.js Lambda options during the build process. It **enhances flexibility** by spreading `functionConfigOverrides` into `NodejsLambda` constructors and exporting `NodejsLambdaOptions` from `build-utils`. Additionally, it **refactors the `fs-detectors` module** by modifying `checkUnusedFunctions` to skip validation for unused backend functions, streamlining the build pipeline. This **new capability** enables more granular control over backend deployments and resolves issues with previously flagged configurations.
This commit **re-architects the evaluation authentication system** within the **`packages/cli/evals` subsystem**, transitioning from Docker to **Vercel sandboxes**. It introduces a new mechanism to automatically provision `VERCEL_OIDC_TOKEN` for sandbox authorization, replacing the `AI_GATEWAY_API_KEY` and simplifying local setup. The change involves sourcing `VERCEL_TOKEN` from the host or environment, and hardcoding specific team/project IDs for the sandbox environment. This **high-risk infrastructure change** significantly impacts how evaluation environments are authenticated and configured, streamlining the process while introducing new credential handling.
This commit **enhances the Vercel CLI documentation** by adding comprehensive guides for deploying **Node.js backends**, **monorepos**, and applications using the **Bun runtime**. It introduces new reference markdown files (`bun.md`, `monorepos.md`, `node-backends.md`) detailing setup and usage, including examples for frameworks like Express, Hono, Elysia, Next.js, Turborepo, and Nx. The `SKILL.md` routing table is updated to link these new resources, providing users with clearer instructions and expanding the discoverability of Vercel's capabilities for these modern development patterns. This is a **documentation update** that significantly improves the user experience for developers working with these technologies.
This commit introduces a **new capability** to the **Related Projects** feature, enabling support for a **custom environment alias** in preview deployments. It adds an optional `customEnvironment` property to the `VercelRelatedProject` type within `packages/related-projects/src/types.ts`. The host resolution logic in `packages/related-projects/src/with-related-project.ts` is updated to prioritize this custom alias over the branch name, providing greater flexibility for users. This **enhancement** ensures that if a custom environment is specified, it will be used for preview host resolution. Comprehensive test cases have been added in `packages/related-projects/test/with-related-project.test.ts` to validate this new behavior.
This commit **reverts previous changes** to the **release workflow**, effectively **removing conditional guards and environment protection** from the automated release process. Specifically, it eliminates the `if: startsWith(...)` condition that gated release jobs to specific commits and removes the `environment: release` protection from the release job in `.github/workflows/release.yml`. This **maintenance** action also simplifies the summary job to always pass, removing its failure detection logic. The primary impact is the **removal of safeguards** that prevented unintended releases, increasing the risk of unapproved deployments.
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