AVAILABLE FOR FULL-TIME ROLES OPEN TO FREELANCE CONTRACTS AI FULLSTACK ENGINEER · AGENTIC AI AGENT-READY · HUMANS WELCOME AI AGENTS · LLM TOOLING · EVALS NEXT.JS · TYPESCRIPT · REACT BASED IN LISBON · REMOTE WORLDWIDE
02 / Agent Skills

Versioned method, not loose prompts.

I turn recurring decisions into contracts agents can execute, verify, and improve. Some skills are public; others expose the method without publishing internal assets.

AGENT-READY · HUMANS WELCOME

This portfolio is also an interface for agents.

Connect over MCP so an agent can evaluate evidence, inspect services and availability, or submit a brief — without having to interpret the visual interface.

MCP Agent Skills OpenAPI /api/mcp ↗
25 authored methods catalogued
8 authored CS Brasil skills
45 /game · 6 authored + 39 upstream
45 /game2 · 6 repository-specific + 39 upstream

48 unique skills found across both codebases. The catalogue below highlights only authored or evidence-backed operating methods; third-party dependencies are not presented as my work.

Showing 25 skills

  • orchestration · Products and platforms documented

    Ralph Starter Orchestration

    Delivery harness for running one or many coding agents through bounded specs, isolated git worktrees, feedback loops, and explicit completion gates.

    Contract
    A repository and verifiable objective in; an isolated, reviewed implementation or an evidence-backed stop out.
    Evidence
    Powers Ralph Starter's single-agent, race, consensus, and pipeline modes with integrations for GitHub, Linear, Notion, Figma, and MCP.
  • autonomous research · Products and platforms documented

    Autoresearch Benchmark Loop

    Autonomous research method where every agent proposal must survive a reproducible benchmark before it enters the frontier.

    Contract
    Objective, benchmark, and stopping rule in; an auditable keep/reject lineage with measured results out.
    Evidence
    The operating loop behind Autoresearcher and leaderboard work in QEC and ECDSA.fail, with git and JSONL as the audit trail.
  • AI discovery · Products and platforms documented

    AEO Delivery System

    Technical AEO workflow that treats crawler policy, canonical identity, entities, structured data, and machine-readable surfaces as one tested system.

    Contract
    A site and target entities in; a measured audit, implementation, and before/after discovery report out.
    Evidence
    Encoded in AEO.js, AEO Checker, and this portfolio's fail-closed discovery gate.
  • frontier analysis · ECDSA.fail Command Center documented

    Benchmark Frontier Archaeology

    Reverse-engineers every accepted frontier move to separate the transferable structural lever from nonce luck and search artifacts.

    Contract
    Winner history and trusted evaluator in; a measured delta decomposition and next-route slate out.
    Evidence
    Used by the ECDSA.fail Frontier Dissector to react to structural leaderboard changes without spending on stale routes.
  • research specification · ECDSA.fail Command Center documented

    ECDSA.fail Route Spec

    Source-anchored gate that turns papers, diffs, and hypotheses into bounded route packets before code or compute is spent.

    Contract
    One hypothesis in; invariant, cheapest falsifier, validator, budget, kill condition, and reopen condition out.
    Evidence
    Prevents vague research prompts from reaching workers or paid GPU hunts in the ECDSA.fail command center.
  • worker orchestration · ECDSA.fail Command Center documented

    Circuit Engineer Factory

    Role factory for dispatching circuit engineers with the exact field, group, phase, ancilla, and cost constraints of a route.

    Contract
    Approved route packet in; a specialist worker contract with evidence labels and a landing verdict out.
    Evidence
    Keeps model-specific workers aligned with the reversible-circuit invariants the command center actually evaluates.
  • circuit engineering · ECDSA.fail Command Center documented

    ECDSA Circuit Optimization

    Structural optimization method for point-addition circuits across qubit width, Toffoli count, live ranges, arithmetic, and score.

    Contract
    A correct circuit and current bottleneck in; ranked structural levers with validation obligations out.
    Evidence
    Applied to the secp256k1 point-addition circuit that reached #1 on ECDSA.fail.
  • correctness · ECDSA.fail Command Center documented

    Reversible Circuit Validation

    Correctness protocol that isolates classical output, phase behavior, and ancilla cleanup before an optimization is trusted.

    Contract
    Candidate circuit and trusted reference in; differential, inverse, phase, and cleanup verdicts out.
    Evidence
    The command center's cls/pha/anc gate separates a cheap-looking circuit from one that is actually submission-safe.
  • space optimization · ECDSA.fail Command Center documented

    Peak Qubit Reduction

    Timeline-based method for finding the tallest live-qubit moment and creating safe holes through earlier uncompute or later recompute.

    Contract
    Circuit timeline in; peak owner, co-binders, reuse opportunities, and width tradeoffs out.
    Evidence
    Makes width reduction explicit instead of treating total ancilla count as a proxy for peak cost.
  • gate optimization · ECDSA.fail Command Center documented

    Toffoli Reduction

    Gate-cost method for cutting Toffoli and non-Clifford work through algebraic fusion, measured replay, and cheaper uncomputation.

    Contract
    Validated circuit and gate profile in; transformations with emitted-cost and correctness consequences out.
    Evidence
    Separates the gate axis from qubit width so the command center can optimize the score's moving bottleneck.
  • GPU research · ECDSA.fail Command Center documented

    ECDSA.fail Island Hunting

    Spend-gated search protocol for estimating clean-island density, validating candidates, and deciding whether a GPU nonce hunt is economical.

    Contract
    Validated structural candidate in; density estimate, hunt verdict, capped ranges, and verified survivor out.
    Evidence
    Connects CPU triage to GPU spend using explicit huntability thresholds and trusted full validation.
  • collaboration · ECDSA.fail Command Center documented

    Multi-Agent Research Collaboration

    Scientific collaboration contract for splitting orthogonal investigations, exchanging exact evidence, and reconciling agent disagreement.

    Contract
    Shared route and independent lanes in; convergence map, conflicts, verified findings, and next experiment out.
    Evidence
    Coordinates Claude, Codex, Kimi, GLM, Amp, and specialist workers without making chat history the source of truth.
  • content pipeline · CS Brasil internal

    CS Brasil Content Pipeline

    Six-gate creation pipeline for Brazilian characters, teams, real-world maps, and 3D assets, from sourced research to in-engine validation.

    Contract
    A culturally grounded theme in; sourced spec, references, generation prompts, integrated asset, ruler, and independent review out.
    Evidence
    The canonical `/csbrasil` skill routes content through spec, compose, map, and generate without skipping provenance or gameplay gates.
  • game production · CS Brasil internal

    Faction Pipeline

    Vertical-slice pipeline for shipping a playable faction as one system: roster, crest, cover, character, thumbnail, selection video, voice, and UI integration.

    Contract
    Faction spec in; one registry-driven, asset-complete, playable faction with mutation-tested gates out.
    Evidence
    Coordinates content creation, visual review, gameplay, voice, and shared metadata so a faction is not a loose folder of files.
  • visual review · CS Brasil internal

    Adversarial Asset Review

    Clean-context critic for every new character, map, model, and texture; the builder's explanation is deliberately excluded from the review.

    Contract
    Spec, served-size screenshots, and references in; concrete visual gaps, engine checks, and approve/reject verdict out.
    Evidence
    Checks cultural specificity, silhouette at gameplay distance, ownership constraints, polycount, texture, and pivot before an asset is accepted.
  • evaluation · CS Brasil internal

    Régua / Executable Quality Gate

    Method for writing invariants, probes, and thresholds that must prove they can fail before they are allowed to protect the game.

    Contract
    A regression risk in; one shared ruler, a red mutation, an honest failure mode, and a CI gate out.
    Evidence
    Encodes the repository law: a ruler that cannot turn red is decoration, not evidence.
  • release risk · CS Brasil internal

    CS Brasil PR Triage

    Risk classifier for deciding whether a pull request is mergeable, needs staging, or requires human gameplay or backend review.

    Contract
    PR diff and checks in; surface classification, risk labels, and explicit mergeability verdict out.
    Evidence
    Treats gameplay, render, HUD, maps, characters, API, Supabase, ranking, and anti-cheat as sensitive surfaces.
  • playable QA · CS Brasil internal

    CS Brasil Smoke Check

    Playable-journey gate covering menu, ranking, nickname, team and character selection, initial boot, and first HUD.

    Contract
    User-visible PR in; browser evidence that the minimum playable flow still reaches the HUD without an immediate crash out.
    Evidence
    A stable-selector flow isolates launch breakage before deeper gameplay or staging review.
  • visual QA · CS Brasil documented

    Gauntlet FPS

    Adversarial visual-improvement loop for a browser FPS: independent critics, measured screenshots, conflict-aware builders, and regression gates.

    Contract
    Pixels and measurements in; ranked gaps with file:line evidence and numeric fixes out.
    Evidence
    Used to evolve CS Brasil maps, weapons, HUD, lighting, and gameplay without letting builders grade their own work.
  • debugging · CS Brasil internal

    Bug Hunt

    Measurement-first debugging protocol that requires a failing ruler, a falsifiable hypothesis, and a mutation proving the fix can regress.

    Contract
    Reproduction and negative evidence in; localized defect, regression test, and verified fix out.
    Evidence
    Separates the user-visible symptom from the code location that actually owns the defect.
  • editorial · This portfolio public

    Blog Voice

    Editorial voice contract for technical writing grounded in shipped systems, concrete tradeoffs, and verifiable claims.

    Contract
    Evidence and a thesis in; an article that sounds authored rather than generated out.
    Evidence
    The shared voice layer behind the bilingual technical blog.
  • publishing · This portfolio public

    Bilingual Publishing

    End-to-end publishing contract for paired English and Portuguese articles, localized slugs, metadata, internal links, RSS, and covers.

    Contract
    One researched article in; two canonical, route-safe, publishable versions out.
    Evidence
    Keeps content, hreflang, feeds, and translated routes synchronized in CI.
  • visual system · This portfolio public

    Portfolio Cover System

    Visual-system skill for generating consistent bilingual article covers and social thumbnails in the portfolio's phosphor language.

    Contract
    Article thesis and visual motif in; production cover plus EN/PT social assets out.
    Evidence
    Versioned references and visual gates keep every article inside one recognizable family.
  • frontend delivery · Reusable methods documented

    Frontend Delivery Harness

    Repository-aware frontend workflow combining specs, browser evidence, responsive checks, accessibility, tests, and diff review.

    Contract
    Product intent in; a verified pull request with visual and regression evidence out.
    Evidence
    The operating method behind this portfolio's prompt-to-pull-request workflow.
  • agent interface · Reusable methods public

    Portfolio MCP

    Agent-facing discovery skill for evaluating experience, services, availability, and starting an introduction through MCP.

    Contract
    A hiring question in; structured, source-linked portfolio evidence out.
    Evidence
    Published through Agent Skills discovery and the site's public MCP endpoint.

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