Open Source Contributions

Every pull request I have had merged into a major open-source project — the bug behind it, the reasoning that fixed it, and a link to the review it went through.

11

Merged PRs

3

Upstream Projects

98k+

Combined Stars

2121

Lines Shipped

  1. Twenty

    ★ 60k+Merged

    twentyhq/twenty · The open-source alternative to Salesforce, designed for AI.

    fix(mcp): echo the client's progressToken instead of fabricating one

    PR #24582 · merged Aug 2026

    The Problem

    Twenty's Model Context Protocol endpoint invented its own progress token for every tool call and streamed a progress notification whether or not the client had asked for one. The MCP spec only allows notifications that reference a token from an active request, so a fabricated token could never be matched by a client — one reporter hit 157 protocol errors in a single Cursor session, after which the client marked the transport failed and left the server permanently red in its MCP list.

    What I Did

    Read the client's own `params._meta.progressToken` and echo it back, sending nothing when no token was supplied — which the spec explicitly permits. A Zod schema does the extraction, so a token of the wrong JSON type, or a fractional number, is treated as absent rather than echoed as a notification no client could match. Shipped with integration tests over the real HTTP path plus unit coverage for the edge tokens a truthiness check would silently drop.

    +95 / −11 · 5 files changed

    TypeScriptNestJSMCPZodSSEJest
    View Merged PR →
  2. Medusa

    ★ 37k+Merged

    medusajs/medusa · The world's most flexible commerce platform for agents and developers.

    fix(auth): await the OAuth state cache write

    PR #16571 · merged Aug 2026

    The Problem

    `setState` on the auth identity provider service wrote OAuth state to the cache fire-and-forget, while its own contract documented "resolves when the state is stored". All four providers — Google, GitHub, OIDC and Medusa Cloud — await it and then immediately redirect, so a user could be sent to the identity provider before the state was actually persisted. Worse, the unhandled rejection meant a transient cache error during login took the whole process down instead of surfacing as a failed sign-in.

    What I Did

    Awaited the cache write, bringing the method in line with the contract its four callers were already written against. Traced the inconsistency to the analogous MFA challenge write in the same file, which already awaited — evidence this was an oversight rather than a deliberate choice. Verified both failure modes by hand, and removed the accompanying test at the reviewer's request rather than claim coverage the PR did not ship.

    +6 / −1 · 2 files changed

    TypeScriptNode.jsOAuthCachingJest
    View Merged PR →
  3. Medusa

    ★ 37k+Merged

    medusajs/medusa · The world's most flexible commerce platform for agents and developers.

    fix(caching): reset the size accounting on a wildcard cache clear

    PR #16607 · merged Sep 2026

    The Problem

    Medusa's in-memory caching provider tracks an approximate memory usage and refuses new entries once it passes `maxSize`. Every removal path kept that figure in sync through the per-key `del` and `expired` events — except clearing with the wildcard tag. `NodeCache.flushAll()` emits a single `flush` and never a per-key `del`, so `clear({ tags: ["*"] })` emptied the cache while leaving the usage exactly where it was. A cache that had crossed its limit then rejected every later write on an empty store, logging "Cache is full" for the rest of the process, and because the rejection happened before any accounting, nothing could ever bring the number back down.

    What I Did

    Two lines in the wildcard branch reset the per-key size map and the usage counter alongside the tag index it already cleared, with a comment recording why the reset cannot come from the `del` handler. Added a provider unit test that fails without the fix, and explained why the existing max-size integration suite could never catch it: its runner builds a fresh provider for every test, so the accounting is always zero. The emitted `.d.ts` is byte-identical, so nothing about the public API moves.

    +60 / −0 · 3 files changed

    TypeScriptNode.jsCachingnode-cacheJest
    View Merged PR →
  4. Medusa

    ★ 37k+Merged

    medusajs/medusa · The world's most flexible commerce platform for agents and developers.

    fix(core-flows): await the mutations performed in step compensations

    PR #16573 · merged Sep 2026

    The Problem

    Medusa rolls back a failed workflow by running the compensation of every step that already completed, and its orchestrator awaits whatever each compensation returns. Two compensations in `@medusajs/core-flows` called their module mutation without awaiting it, one of them inside a function that was not even `async`. The orchestrator therefore marked the rollback complete while the restoring write was still in flight. A rollback that failed was never recorded against the transaction either: neither the caller nor the logs saw it, and it surfaced as an unhandled rejection instead. The draft-order step sits on a live path behind the admin route that changes a draft order's shipping method, so a failure in any of the tax-line or order-change steps after it ran the broken rollback.

    What I Did

    Four lines: awaited the three dropped calls and made the draft-order compensation `async`. The evidence that these were omissions rather than intent was in the same files. Each step's own invoke function awaits the exact same call, and the two campaign promotion steps that superseded the second one already await theirs. Before dropping the test at the reviewer's request, ran a real workflow through the real orchestrator against the reverted fix and reproduced both failures: the run resolved before the rollback write landed, and a rejecting rollback never reached the transaction's compensation errors. The PR also states plainly that the second step is no longer wired into any workflow, so the change does not claim more reach than it has.

    +9 / −4 · 3 files changed

    TypeScriptNode.jsWorkflow EngineSaga Pattern
    View Merged PR →
  5. Saleor Dashboard

    ★ 1k+Merged

    saleor/saleor-dashboard · The GraphQL-powered dashboard for the Saleor commerce platform.

    Stop lists crashing on a selection that outlived its rows

    PR #6873 · merged Aug 2026

    The Problem

    Selecting rows and then shrinking the list replaced the entire view with an error page across six different lists — products, collections, models, draft orders, shipping zones and gift cards. The data grid tracks its selection by row index, independently of the data behind it, and reported those indices verbatim; the list views then resolved them straight onto arrays that no longer had rows at those positions.

    What I Did

    Fixed the cause rather than the reported symptom: the grid is the authority on how many rows exist, so it no longer reports rows past the last one it renders. Index-to-id resolution moved into a shared helper, because the clamp alone was insufficient — the row count is not always the length of the data behind it. That also settled three divergent behaviours spread across nine lists, two of which had been leaking `undefined` into the bulk actions.

    +579 / −109 · 39 files changed

    TypeScriptReactGlide Data GridGraphQLVitest
    View Merged PR →
  6. Saleor Dashboard

    ★ 1k+Merged

    saleor/saleor-dashboard · The GraphQL-powered dashboard for the Saleor commerce platform.

    Restore link behaviour on datagrid rows

    PR #6868 · merged Aug 2026

    The Problem

    Right clicking a product in the catalogue offered no "Open link in new tab", and middle clicking navigated in the current tab instead of opening a new one — still reproducing on dashboard 3.23.19, leaving Ctrl/Cmd + click as the only way to open a row in a new tab. Each list grid moves a single anchor over the hovered cell so rows can behave like ordinary links, but that anchor was placed in document coordinates while the grid reports cell bounds in viewport coordinates. It never sat on the cell it pointed at, so native link gestures landed on the grid canvas, which has no handling for them.

    What I Did

    Positioned the anchor with `position: fixed` against the bounds the grid already reports, so it lands exactly over the cell under the cursor. Pointer events then reach the anchor, which made its visibility the harder half of the fix: parked over a cell it swallows the pointer returning there and the row silently loses its hover highlight. Wheel deltas are forwarded to the grid's own scroller, because the previous workaround of hiding on wheel could not work — React registers `onWheel` passively, so the gesture is already latched by the time the handler runs. Driven in Chromium against a real product list with the grid offset from the document origin and the page scrolled, and the regression test fails on `main`.

    +551 / −65 · 12 files changed

    TypeScriptReactGlide Data GridDOM EventsPlaywright
    View Merged PR →
  7. Saleor Dashboard

    ★ 1k+Merged

    saleor/saleor-dashboard · The GraphQL-powered dashboard for the Saleor commerce platform.

    Fix Navigator (Ctrl+K) combobox ARIA pattern

    PR #6858 · merged Aug 2026

    The Problem

    The command palette shipped combobox-style ARIA attributes on an abstract `role="input"`, so none of them took effect and the role overrode the native input's own. axe-core reported three critical violations on the open palette: screen readers announced neither the field as a combobox, nor the popup as a list, nor which result was currently highlighted. Two option nodes had no id at all, so highlighting them wrote an empty `aria-activedescendant`.

    What I Did

    Rebuilt the accessibility tree with no visual change at all: the field became a real combobox controlling a labelled listbox, with `role="option"`, the id and `aria-selected` consolidated onto a single node so `aria-activedescendant` always resolves to an option the listbox actually owns. Kept action items as anchors to preserve middle-click, and documented the one interaction trade-off in the PR rather than leaving the reviewer to find it.

    +390 / −40 · 18 files changed

    TypeScriptReactWAI-ARIAaxe-coreAccessibility
    View Merged PR →
  8. Saleor Dashboard

    ★ 1k+Merged

    saleor/saleor-dashboard · The GraphQL-powered dashboard for the Saleor commerce platform.

    Keep decimals in discount rule reward values

    PR #6860 · merged Aug 2026

    The Problem

    A discount rule's reward value silently dropped everything after the decimal point — entering `12.55` saved `12`. `parseInt` truncated the input, and because the field is controlled, React wrote the rounded number straight back as you typed, with no error and nothing to indicate the cents had been discarded. A separate validation guard then rejected every sub-unit reward with "Rule reward value is required", pointing at entirely the wrong problem.

    What I Did

    Three lines of production change, no visual change: `parseInt` became `parseFloat`, `step="any"` declared the field as decimal so the spinner and its validity state finally agreed, and the schema's `.min(1)` became `.gt(0)` so a 0.5% or $0.99 rule passes while zero and negatives stay rejected under the same message. Deliberately left currency rounding to the server, matching how the maintainers had scoped precision validation in the issue thread.

    +180 / −2 · 5 files changed

    TypeScriptReactZodReact Hook Form
    View Merged PR →
  9. Saleor Dashboard

    ★ 1k+Merged

    saleor/saleor-dashboard · The GraphQL-powered dashboard for the Saleor commerce platform.

    Clear draft order finalize errors once the data is filled in

    PR #6939 · merged Oct 2026

    The Problem

    Clicking Finalize on an incomplete draft order marks what is missing: the billing address, the shipping address and the shipping method. Filling those details in did not clear the markers. They stayed on the page, with no way to dismiss them, until Finalize was clicked again. The bug had been reported in 2023 and still reproduced on `main`. The draft view read its errors straight off the last `draftOrderComplete` result, a snapshot of what was missing at the moment of the click that Apollo keeps until the mutation runs again. The view passed that snapshot to both the customer card and the order value card, so all three markers went stale together.

    What I Did

    Filtered the snapshot against the draft as it stands now, at the one place it is read, so every consumer was fixed at once and nothing about how the errors render had to change. A small helper drops each error as soon as the order carries the data it reported missing. Codes that cannot be judged stale from client state, such as `SHIPPING_NOT_APPLICABLE` and line-level stock errors, deliberately pass through untouched, as does everything while the order is still loading. Seven unit tests pin the behaviour, and reverting the helper to a pass-through fails four of them.

    +197 / −1 · 4 files changed

    TypeScriptReactApollo ClientGraphQLJest
    View Merged PR →
  10. Saleor Dashboard

    ★ 1k+Merged

    saleor/saleor-dashboard · The GraphQL-powered dashboard for the Saleor commerce platform.

    Stop warning about shipping on drafts that don't need it

    PR #6941 · merged Oct 2026

    The Problem

    A draft order made up entirely of non-shippable products, such as digital goods, has no shipping methods to offer. The draft page took that to mean the channel was misconfigured and warned that the draft could not be finalized because the country was not a shipping destination. Yet finalizing skips shipping validation entirely when an order requires no shipping, so the alert named a blocker that did not exist and sent people off to fix shipping zones that had nothing wrong with them. The issue had been open since January 2023. The alert judged shipping availability from an address and some lines alone, but an empty method list can mean either case, and only `isShippingRequired` tells them apart.

    What I Did

    Gated the alert on the order actually requiring shipping. It is one condition: the inactive-channel and no-products alerts are untouched, and a shippable draft is warned exactly as before. The existing test for that alert turned out to pass only because the shared fixture sets `isShippingRequired: false` on the order while its lines say `true`, so it had been asserting the buggy path all along. It now sets the flag explicitly and keeps covering what it was written to cover, and two new tests fail against the unfixed component.

    +49 / −1 · 3 files changed

    TypeScriptReactGraphQLJest
    View Merged PR →
  11. Saleor Dashboard

    ★ 1k+Merged

    saleor/saleor-dashboard · The GraphQL-powered dashboard for the Saleor commerce platform.

    Rename Copilot instructions file so the repo checks out on Windows

    PR #7001 · merged Oct 2026

    The Problem

    The repository tracked a file whose name was literally `*.instructions.md`, and Windows does not allow `*` in a file name. Every clone, pull, checkout and hard reset on Windows failed with `invalid path`, so contributors on Windows could not use the repository at all without sparse checkout or WSL.

    What I Did

    Copilot reads custom instructions from any `.github/instructions/**/*.instructions.md` file, so the literal asterisk was never needed. It read like the glob from the documentation, copied in verbatim. Renamed the file and kept the instruction word for word. Also added `applyTo` front matter scoping it to the generated GraphQL schema and types it talks about, because without front matter Copilot does not apply an instructions file automatically. Checked the branch out into a fresh worktree on Windows 11 to confirm the checkout now completes.

    +5 / −1 · 2 files changed

    GitGitHub CopilotWindowsDeveloper Tooling
    View Merged PR →