facebook/sapling
Feb 2025 – Mar 2026
14 Months active
Languages Used
BUCKBuckPythonRustShellC++SQLTOML
Technical Skills
API DesignAPI IntegrationAsynchronous ProgrammingBackend DevelopmentBatch ProcessingBuild System Configuration
Luisa Vasquez Gomez
PROFILE
Luisa Vasquez Gomez
Luis Vasquez-Gomez contributed to the facebook/sapling repository by engineering robust backend systems for distributed version control, focusing on scalable Git and commit cloud integration. He designed and implemented high-performance APIs and synchronization protocols using Rust and Python, enabling efficient cross-repository operations and secure, auditable workflows. His work included parallelizing data pipelines, optimizing database interactions with SQL, and modernizing logging and access control for improved observability and governance. By refactoring legacy endpoints, enhancing configuration management, and enforcing authorization checks, Luis delivered maintainable, modular code that improved developer productivity, reduced operational risk, and ensured reliable, secure collaboration across large-scale codebases.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
236Total
Bugs
18
Commits
236
Features
70
Lines of code
19,589
Activity Months14
Your Network
3048 peopleSame Organization
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Work History
March 2026
40 Commits • 15 Features
Mar 1, 2026In March 2026, facebook/sapling delivered significant improvements in API capability, performance, and quality. Key EdenAPI work delivered a bookmark endpoint enhancement with list_bookmark_patterns, plus integration tests and Python bindings, enabling pattern-based bookmark fetching in remotenames and commitcloud. Commit Cloud performance was materially improved through bulk multi-row inserts for heads, bookmarks, and snapshots, and by parallelizing changeset derivation, reducing SQL round-trips and overall sync latency. Across multiple subsystems (modern_sync, skeleton_manifest_v2, commit logger, land_stack, set_bookmark, diff), parallelization of independent tasks lowered per-commit latency and increased throughput. Code health received focused attention: extensive cleanup, improved logging for restricted SCS paths, and API cleanups; additional governance rules for LLMS and SLAPI, plus security-oriented fixes around logging and access control. New hooks and governance rules (e.g., limit_users_directory_size, ACR rule extensions, and SLAPI diff review rules) improved maintainability, risk management, and developer productivity. Collectively, these changes improved reliability, observability, and business value while preserving feature velocity.
40 Commits • 15 Features
Mar 1, 2026In March 2026, facebook/sapling delivered significant improvements in API capability, performance, and quality. Key EdenAPI work delivered a bookmark endpoint enhancement with list_bookmark_patterns, plus integration tests and Python bindings, enabling pattern-based bookmark fetching in remotenames and commitcloud. Commit Cloud performance was materially improved through bulk multi-row inserts for heads, bookmarks, and snapshots, and by parallelizing changeset derivation, reducing SQL round-trips and overall sync latency. Across multiple subsystems (modern_sync, skeleton_manifest_v2, commit logger, land_stack, set_bookmark, diff), parallelization of independent tasks lowered per-commit latency and increased throughput. Code health received focused attention: extensive cleanup, improved logging for restricted SCS paths, and API cleanups; additional governance rules for LLMS and SLAPI, plus security-oriented fixes around logging and access control. New hooks and governance rules (e.g., limit_users_directory_size, ACR rule extensions, and SLAPI diff review rules) improved maintainability, risk management, and developer productivity. Collectively, these changes improved reliability, observability, and business value while preserving feature velocity.
March 2026
February 2026
15 Commits • 4 Features
Feb 1, 2026February 2026 Sapling: Delivered EdenAPI-backed bookmark resolution and streamlined bookmark lookups, achieving more reliable cross-repo resolution and reducing wireproto dependencies. Improved streaming clone and changelog performance by fetching bookmarks from SLAPI and batching changes, while stabilizing push/clone paths. Resolved HG extras syncing hash issues by switching to raw HG extras, eliminating inconsistencies in changeset hashes. Modernized logging infrastructure with schematized loggers, restricted paths logging, and tooling allowlist support, plus updated tests and observability. Consolidated repository configuration and cleanup, removing dead extensions and aligning hooks.
February 2026
15 Commits • 4 Features
Feb 1, 2026February 2026 Sapling: Delivered EdenAPI-backed bookmark resolution and streamlined bookmark lookups, achieving more reliable cross-repo resolution and reducing wireproto dependencies. Improved streaming clone and changelog performance by fetching bookmarks from SLAPI and batching changes, while stabilizing push/clone paths. Resolved HG extras syncing hash issues by switching to raw HG extras, eliminating inconsistencies in changeset hashes. Modernized logging infrastructure with schematized loggers, restricted paths logging, and tooling allowlist support, plus updated tests and observability. Consolidated repository configuration and cleanup, removing dead extensions and aligning hooks.
January 2026
14 Commits • 5 Features
Jan 1, 2026January 2026: Delivered core features for streaming clones via SLAPI, stabilized repository workflows by removing obsolete wireproto endpoints, and improved observability and developer onboarding. The work reduced cloning risk, eliminated flaky tests, and modernized build/config workflow across Sapling.
14 Commits • 5 Features
Jan 1, 2026January 2026: Delivered core features for streaming clones via SLAPI, stabilized repository workflows by removing obsolete wireproto endpoints, and improved observability and developer onboarding. The work reduced cloning risk, eliminated flaky tests, and modernized build/config workflow across Sapling.
January 2026
December 2025
6 Commits • 2 Features
Dec 1, 2025December 2025 – Facebook/Sapling: Focused on strengthening repository configuration, security, and cloud-operations governance to deliver measurable business value with maintainable code and safer processes. Delivered targeted configuration improvements, improved review governance, and enhanced identity handling for cloud operations.
December 2025
6 Commits • 2 Features
Dec 1, 2025December 2025 – Facebook/Sapling: Focused on strengthening repository configuration, security, and cloud-operations governance to deliver measurable business value with maintainable code and safer processes. Delivered targeted configuration improvements, improved review governance, and enhanced identity handling for cloud operations.
November 2025
19 Commits • 5 Features
Nov 1, 20252025-11 monthly summary for facebook/sapling focusing on security hardening, logging, and modular architecture. Delivered key access-control and observability improvements, with a substantial repo reorganization to enhance maintainability and onboarding. This period emphasized business value through secure data access, auditability, and safer collaboration across teams.
19 Commits • 5 Features
Nov 1, 20252025-11 monthly summary for facebook/sapling focusing on security hardening, logging, and modular architecture. Delivered key access-control and observability improvements, with a substantial repo reorganization to enhance maintainability and onboarding. This period emphasized business value through secure data access, auditability, and safer collaboration across teams.
November 2025
October 2025
7 Commits • 2 Features
Oct 1, 2025Monthly summary for 2025-10 (facebook/sapling): Key features delivered: - API surface simplification: Removed deprecated bookmarks endpoint and related handler/metrics; bookmarks2 now supersedes functionality, reducing API surface and maintenance cost. - Fsnode support and observability: Introduced Fsnode type for manifest logging, integrated fsnodes with the manifest store, enabled access logging for fsnodes via the Mononoke API, and expanded unit tests to cover fsnodes and restricted paths. Major bugs fixed: - Stability/Performance: Reinstated and configured garbage collection for history entries in commit_cloud to delete outdated entries, with a configurable limit to prevent performance degradation; prevents unbounded growth of xdb.commit_cloud. Overall impact and accomplishments: - Business value: Simplified API surface reduces onboarding friction and maintenance bills, while maintaining feature parity via bookmarks2. Improved data hygiene and observability with fsnode logging and tests. GC fixes improve system stability and long-term storage health. - Technical impact: Clean API boundaries, enhanced manifest integration, broader test coverage, and metrics-enabled logging that supports quicker diagnosis and reliability. Technologies/skills demonstrated: - API design and deprecation strategy, logging/metrics instrumentation, manifest store integration, test-driven development, and performance-focused data lifecycle management.
October 2025
7 Commits • 2 Features
Oct 1, 2025Monthly summary for 2025-10 (facebook/sapling): Key features delivered: - API surface simplification: Removed deprecated bookmarks endpoint and related handler/metrics; bookmarks2 now supersedes functionality, reducing API surface and maintenance cost. - Fsnode support and observability: Introduced Fsnode type for manifest logging, integrated fsnodes with the manifest store, enabled access logging for fsnodes via the Mononoke API, and expanded unit tests to cover fsnodes and restricted paths. Major bugs fixed: - Stability/Performance: Reinstated and configured garbage collection for history entries in commit_cloud to delete outdated entries, with a configurable limit to prevent performance degradation; prevents unbounded growth of xdb.commit_cloud. Overall impact and accomplishments: - Business value: Simplified API surface reduces onboarding friction and maintenance bills, while maintaining feature parity via bookmarks2. Improved data hygiene and observability with fsnode logging and tests. GC fixes improve system stability and long-term storage health. - Technical impact: Clean API boundaries, enhanced manifest integration, broader test coverage, and metrics-enabled logging that supports quicker diagnosis and reliability. Technologies/skills demonstrated: - API design and deprecation strategy, logging/metrics instrumentation, manifest store integration, test-driven development, and performance-focused data lifecycle management.
September 2025
9 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for facebook/sapling. Delivered major API enhancements, reliability improvements, and pipeline stability that collectively boost developer productivity and reduce deployment risk.
9 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for facebook/sapling. Delivered major API enhancements, reliability improvements, and pipeline stability that collectively boost developer productivity and reduce deployment risk.
September 2025
August 2025
10 Commits • 3 Features
Aug 1, 2025August 2025 — facebook/sapling: Delivered end-to-end Commit Cloud usability enhancements, stabilized the Cloud Git lifecycle, and extended endpoints with bookmarks and cross-repo visibility. Achieved stronger developer onboarding, reduced misconfig risk, and improved CI reliability, while validating workspace naming rules for robust parsing.
August 2025
10 Commits • 3 Features
Aug 1, 2025August 2025 — facebook/sapling: Delivered end-to-end Commit Cloud usability enhancements, stabilized the Cloud Git lifecycle, and extended endpoints with bookmarks and cross-repo visibility. Achieved stronger developer onboarding, reduced misconfig risk, and improved CI reliability, while validating workspace naming rules for robust parsing.
July 2025
13 Commits • 5 Features
Jul 1, 2025July 2025 monthly summary for facebook/sapling. Focused on enabling robust Git server capabilities, exposing Sapling capabilities across APIs, surfacing cloud workspaces via the SLAPI Git interface, and enabling cross-repo workspace queries in Commit Cloud. Implemented capability-aware API surfaces, added necessary checks to the EdenAPI client, and introduced cross-repo workspace orchestration and CLI visibility. These changes improve reliability, scalability, and cross-repo collaboration for Sapling users.
13 Commits • 5 Features
Jul 1, 2025July 2025 monthly summary for facebook/sapling. Focused on enabling robust Git server capabilities, exposing Sapling capabilities across APIs, surfacing cloud workspaces via the SLAPI Git interface, and enabling cross-repo workspace queries in Commit Cloud. Implemented capability-aware API surfaces, added necessary checks to the EdenAPI client, and introduced cross-repo workspace orchestration and CLI visibility. These changes improve reliability, scalability, and cross-repo collaboration for Sapling users.
July 2025
June 2025
13 Commits • 2 Features
Jun 1, 20252025-06 monthly summary for facebook/sapling focused on delivering robust Git integration, enhanced commit cloud capabilities, and CI/stability improvements. The work aligns with business goals of faster developer velocity, reliable automated workflows, and improved observability across the platform.
June 2025
13 Commits • 2 Features
Jun 1, 20252025-06 monthly summary for facebook/sapling focused on delivering robust Git integration, enhanced commit cloud capabilities, and CI/stability improvements. The work aligns with business goals of faster developer velocity, reliable automated workflows, and improved observability across the platform.
May 2025
17 Commits • 2 Features
May 1, 2025Month: 2025-05 — Facebook Sapling. Focus this month was to deliver Git infrastructure for the commit-cloud service and its SLAPI integration, stabilize Git-related SLAPI exposure, and improve REST routing and UX for Git endpoints. Key outcomes include a unified Git API with backend scaffolding, compatibility layers across cloud APIs, and robust end-to-end Git workflows in both sharded and unsharded modes. The work reduces friction for Git-based workflows and enhances maintainability across the platform.
17 Commits • 2 Features
May 1, 2025Month: 2025-05 — Facebook Sapling. Focus this month was to deliver Git infrastructure for the commit-cloud service and its SLAPI integration, stabilize Git-related SLAPI exposure, and improve REST routing and UX for Git endpoints. Key outcomes include a unified Git API with backend scaffolding, compatibility layers across cloud APIs, and robust end-to-end Git workflows in both sharded and unsharded modes. The work reduces friction for Git-based workflows and enhances maintainability across the platform.
May 2025
April 2025
21 Commits • 9 Features
Apr 1, 2025April 2025 monthly summary for facebook/sapling: Delivered substantial cloud-enabled synchronization enhancements and app modernization, with a focus on interoperability, security, and maintainability. Highlights include Modern Sync improvements with git_extra_headers and config integration; CloudChangesetId adoption with related refactors across checkout locations, snapshots, and migrations; CAS Sync migration to the Mononoke app and Clap4; cloud-backed mapping improvements using Bonsai mapping and bookmark maps migration; and a privacy-focused bug fix reverting publicly exposed changesets.
April 2025
21 Commits • 9 Features
Apr 1, 2025April 2025 monthly summary for facebook/sapling: Delivered substantial cloud-enabled synchronization enhancements and app modernization, with a focus on interoperability, security, and maintainability. Highlights include Modern Sync improvements with git_extra_headers and config integration; CloudChangesetId adoption with related refactors across checkout locations, snapshots, and migrations; CAS Sync migration to the Mononoke app and Clap4; cloud-backed mapping improvements using Bonsai mapping and bookmark maps migration; and a privacy-focused bug fix reverting publicly exposed changesets.
March 2025
32 Commits • 7 Features
Mar 1, 2025For 2025-03, Facebook Sapling (facebook/sapling) delivered a focused set of features and reliability improvements that drive data integrity, throughput, and operational configurability. The work emphasizes CAS integration, modern sync protocols, and improved observability, while maintaining stability of critical data processing pipelines.
32 Commits • 7 Features
Mar 1, 2025For 2025-03, Facebook Sapling (facebook/sapling) delivered a focused set of features and reliability improvements that drive data integrity, throughput, and operational configurability. The work emphasizes CAS integration, modern sync protocols, and improved observability, while maintaining stability of critical data processing pipelines.
March 2025
February 2025
20 Commits • 6 Features
Feb 1, 2025February 2025 (2025-02) monthly summary for facebook/sapling. Focused on delivering core features with improved performance, reliability, and observability, aligned with business value goals. Key achievements delivered this month: - New commit tailer: processing pipeline and diagnostics (channel-based routing, manifest derivation/backwards matching, and ODS logging). Commits: fe9ce999e0e969c935421503f3965f6f4c159f6f; 5bcaab551ea89880ec6611b3a9d85e36775ce487; 452861a9a058c2bb6a95176023df870a211bb322; dcf5850512b8bf26c796aca660489c4da64d879a; efeb6c07f91fb12cda73cf71fdf08c7abe6fa736. - Modern Sync: performance and parallelism improvements (processing-time measurement, faster changeset reading, larger channels, parallel file/tree sync, batched trees, and avoiding opening the target repo). Commits: 25bad294313a194975d4c2b2295faced4efc4b79; 765930f1f4fcc379b4373ea48597f67ae6287466; 106441136fafc730b9aeb4eb74b6337abdd042d0; e06b2f65569156f74d432f9c7bd13d8706a92349; b9c13b771928e14d96b54b16244eeb93674a92ba; 71d9c3e17abed759cd9835f4d068199e7b456f26. - Cloud: support date-based heads hiding in cloud commit workflow. Commit: ba27ac532e7d2379b14ff54ae95c9aa554ad87dc. - Modern Sync: Batch uploads and logging enhancements (batch content uploads, extra logging for contents, and removal of duplicate log). Commits: 2f81c6e349de1c01fb676a867680ed29ae2a749f; 3bb54fc410b87bbf479c698f0f8d7cb3309670b0; e5a20a744fec39b04b2de50f4318736be358ab8a. - Mononoke: CAS client integration with new commit tailer and migration cleanup. Commits: 1743bb0ddb2c25e24c97529aa591c4f5fe22299e; 48c412f4306a1511c393d9a16162d1d040d7c74b. Major improvements and experiments this month: - CAS client ergonomics improvements and tooling improvements in the tailer workflow. - Observability: logging enhancements across critical paths and improvements to ODS instrumentation. Note: A regression fix was applied to revert a changeset-reading speedup in Modern Sync to preserve stability, and EdenAPI lightweight cleanup completed to reduce noisy logs.
February 2025
20 Commits • 6 Features
Feb 1, 2025February 2025 (2025-02) monthly summary for facebook/sapling. Focused on delivering core features with improved performance, reliability, and observability, aligned with business value goals. Key achievements delivered this month: - New commit tailer: processing pipeline and diagnostics (channel-based routing, manifest derivation/backwards matching, and ODS logging). Commits: fe9ce999e0e969c935421503f3965f6f4c159f6f; 5bcaab551ea89880ec6611b3a9d85e36775ce487; 452861a9a058c2bb6a95176023df870a211bb322; dcf5850512b8bf26c796aca660489c4da64d879a; efeb6c07f91fb12cda73cf71fdf08c7abe6fa736. - Modern Sync: performance and parallelism improvements (processing-time measurement, faster changeset reading, larger channels, parallel file/tree sync, batched trees, and avoiding opening the target repo). Commits: 25bad294313a194975d4c2b2295faced4efc4b79; 765930f1f4fcc379b4373ea48597f67ae6287466; 106441136fafc730b9aeb4eb74b6337abdd042d0; e06b2f65569156f74d432f9c7bd13d8706a92349; b9c13b771928e14d96b54b16244eeb93674a92ba; 71d9c3e17abed759cd9835f4d068199e7b456f26. - Cloud: support date-based heads hiding in cloud commit workflow. Commit: ba27ac532e7d2379b14ff54ae95c9aa554ad87dc. - Modern Sync: Batch uploads and logging enhancements (batch content uploads, extra logging for contents, and removal of duplicate log). Commits: 2f81c6e349de1c01fb676a867680ed29ae2a749f; 3bb54fc410b87bbf479c698f0f8d7cb3309670b0; e5a20a744fec39b04b2de50f4318736be358ab8a. - Mononoke: CAS client integration with new commit tailer and migration cleanup. Commits: 1743bb0ddb2c25e24c97529aa591c4f5fe22299e; 48c412f4306a1511c393d9a16162d1d040d7c74b. Major improvements and experiments this month: - CAS client ergonomics improvements and tooling improvements in the tailer workflow. - Observability: logging enhancements across critical paths and improvements to ODS instrumentation. Note: A regression fix was applied to revert a changeset-reading speedup in Modern Sync to preserve stability, and EdenAPI lightweight cleanup completed to reduce noisy logs.
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Quality Metrics
Correctness90.2%
Maintainability88.2%
Architecture87.8%
Performance84.8%
AI Usage26.6%
Skills & Technologies
Programming Languages
BUCKBuckC++GoMakefileMarkdownPythonRustSQLShell
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI designAPI developmentAPI integrationAsynchronous ProgrammingBackend DevelopmentBatch ProcessingBug FixingBuild System ConfigurationBuild SystemsC++ developmentCI/CDCloud Integration
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline