Ama Senevirathne

AI / agent engineer · Full-stack software engineer

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I build the systems around AI: provider integrations, tool calling, security tooling, distributed backends, and the interfaces people use.

AI & agent systems

PolyAI .NET

C# multi-provider SDK with streaming, structured output, and runtime tool discovery. Tool schemas follow runtime types and reject unsupported parameter shapes. README · ToolRegistry · Provider routing

CredScan

Python scanning for source, staged changes, and agent configuration. It inspects MCP environment values, headers, and arguments, and reads Git index blobs so staged content is scanned as staged. Agent artifacts · Git integration

CentaurLoop

Python experiments for coding-agent guardrails: syntax checks, forbidden-phrase checks, and compact execution logs. Implementation

Full-stack systems

FreshCart Backend

A .NET / Aspire reference backend with an Angular storefront. Checkout state explicitly models stock and payment success or failure; activities and consumers isolate side effects; payment events and a projection marker share one MongoDB transaction. Checkout state machine · Payment event store · Build and test workflow

More source

FreshCart Web

Angular storefront with signals and HttpOnly-cookie sessions. Auth boundary

DupeSweep

C# duplicate-file tooling with reversible quarantine and restore.

a11y-scope

Accessibility monitoring with Playwright and axe-core. README

Engineering range

• AI integrations and tools — C# provider boundaries, JSON Schema, streaming, and structured output. Evidence
• Agent security — Python inspection of MCP configuration and staged Git content. Evidence
• Distributed systems — MassTransit state machines and transactional event storage. Evidence
• Data and recovery — MongoDB event storage and projection markers in one transaction. Evidence
• Frontend — Angular, TypeScript, signals, and a deliberately scoped auth boundary. README · Auth boundary
• Delivery and accessibility — reusable restore, build, and test workflow; Playwright and axe-core monitoring described in the project README. Workflow · README

Open-source contributions

9 verified merged pull requests across 9 repositories. Live GitHub search

Repositories: apmantza/pi-lens · atretyak1985/swarmery · BerriAI/litellm · calibrain/shelfmark · felladrin/MiniSearch · MihaelaAghirculesei/n8n-probe · schubydoo/clauster · theagentplane/tokenops · wemake-services/django-modern-rest

Selected upstream merges

• BerriAI/litellm — Made budget resets invalidate the affected end-user spend counter and cache.
• apmantza/pi-lens — Overlapped auxiliary LSP warmup with the primary server during resync.
• schubydoo/clauster — Avoided appending a redundant .gitignore rule when an existing rule already covers the path.

Full merged-PR catalog (9)

apmantza/pi-lens

• fix(lsp): overlap auxiliary LSP warmup with primary server during resync (#2540)

atretyak1985/swarmery

• docs(skills): state negative boundaries in frontmatter descriptions (#284)

BerriAI/litellm

• fix(proxy): invalidate end-user spend counter and cache on budget reset (#39726)

calibrain/shelfmark

• fix(postprocess): attach unmatched chaptered audio files to existing book group (#1176)

felladrin/MiniSearch

• ci: fix biome.json schema version mismatch warning (#2529)

MihaelaAghirculesei/n8n-probe

• test: extract shared vitest base config to de-duplicate n8n-workflow alias (#7)

schubydoo/clauster

• fix(config-write): skip redundant .gitignore append when existing rule covers path (#1484)

theagentplane/tokenops

• docs(policies): point docs at docs/policies/ and document trajectory_hint exception (#68)

wemake-services/django-modern-rest

• refactor(json): rename \json_dump\ to \json_dumps\ (#1399)

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Sources: public GitHub repository and pull-request records.