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cwwjacobs/README.md

Corey Jacobs

I build evidence-first systems for tool-using agents: capture what happened, preserve provenance, test adversarial failure modes, and keep operator authority explicit.

Current focus: agent security, context injection, evaluation infrastructure, reproducible execution evidence, and local-first tooling.

GTDataworks is the main line of work: an evidence pipeline for consequential agent runs, from captured execution to sealed evidence, evaluation receipts, and derived products.
gtdataworks.com

Selected work

  • Agent Flight Recorder — local-first recording for observable tool-using agent runs: model calls, tool calls/results, state snapshots, checkpoints, exports, regression cases, and eval seeds.
  • Crumple Zone — Firecracker-based bounded agent exercises with host-owned mediation, quarantined raw output, trusted event streams, replay, and evidence verification.
  • GTDataworks Portlock — shipped Linux USB mass-storage policy tool with soft/hard locking, session-lock behavior, attempt logging, .deb packaging, and a public apt repository.
  • DIF Defense — experimental behavioral prompt-injection detection that evaluates recorded agent behavior against a frozen set of forbidden actions.
  • GTDataworks-Labyrinth — public runtime architecture for captured and sealed agent execution, including a separately constrained range model for cyber environments.

Open-source contributions

  • Kimi K3 in C — PR #6 — merged checkpoint-integrity work introducing immutable Hugging Face revision pinning and checksum verification so same-size corruption cannot pass size-only validation. The upstream first-run consolidation later retained and further hardened this path.
  • Kimi K3 in C — PR #13 — merged regression coverage for a silent trunk-streaming corruption failure where one-slot async prefetch can overwrite the layer still being computed. Adds a synthetic checkpoint-free fixture covering the one-slot guard, two-slot prefetch isolation, ring wraparound, and failed-read publication safety; the mutation check fails when the guard is deliberately defeated.

Honorable mentions

  • Omega Harness — receipt-bearing, operator-authorized runtime sessions with tamper-evident lineage.
  • OpenAI Safety Hunt — scoped canary-only research harness for indirect prompt injection, MCP/tool-output poisoning, and reproducibility receipts.
  • Card Forge — bounded card/deck workflow tooling with explicit operator approval and provenance rules.
  • Constellation — local evidence mapping and planned-vs-actual drift receipts for agent-assisted work.

Working principles

  • Evidence before claims.
  • Preserve primary artifacts; derive downstream products with lineage.
  • Treat untrusted context as data, not authority.
  • Make failure states explicit instead of silently widening scope.
  • Prefer reproducible receipts over plausible completion narratives.

Pinned Loading

  1. agent-flight-recorder agent-flight-recorder Public

    Agent flight recorder

    Python 1

  2. cinder-space cinder-space Public

    An ephemeral kernel that either burns away in VRAM or collapses in when an authority-bearing vector becomes at risk.

    Python 1 1

  3. dif-defense dif-defense Public

    Sandboxed LLM performs a tool call and use, without authority. After it's performed, a state Dif is performed, and actions are audited. Exposes Context Injection.

    Python 1

  4. GTDLabyrinth GTDLabyrinth Public

    endless training scenarios.

    TypeScript 1

  5. CodexTGH CodexTGH Public

    Codex's implementation of TGH.

    1

  6. crumple-zone crumple-zone Public

    Codex Build Week submission, before you make a risky tool call; have Codex crumple it once.

    Python 1