Pylon

Tech stack

• Bun
• Effect
• OpenTUI

Launch Package

The v0.3 release-candidate package is @openagentsinc/pylon@0.3.0-rc1 and exposes the pylon binary. Do not treat 0.3.0 as stable until the launch gates pass.

Initial supported operator platforms are macOS and Linux. No other operator platforms are in scope for the first v0.3 launch path.

Runtime Backends

Pylon now carries the former Probe runtime as @openagentsinc/pylon-runtime. The public pylon binary bundles that runtime source, keeps the OpenTUI node dashboard as the default, and routes backend/runtime commands through the same binary:

pylon runtime backend gemini smoke
pylon backend gemini complete --prompt "Summarize the current task."
pylon backend psionic doctor --json
pylon psionic doctor --json
pylon psionic install --channel rc --manifest-url <release-manifest-url> --yes
pylon psionic models install qwen35-0_8b-q8_0 --manifest-url <model-manifest-url> --yes
pylon apple-fm status
pylon apple-fm tool-stream-demo

Bootstrap And Status

pylon bootstrap --json
pylon bootstrap --register-openagents --setup-mdk-wallet --pylon-ref <ref> --display-name <name> --resource-mode background_20 --capability-ref <ref> --json
pylon status --json

bootstrap creates the local v0.3 home/cache/release layout and writes a minimal public-safe config summary. Live registration and MDK mutation are tracked by later launch gates.

status --json loads or creates the local identity/runtime state and emits a redacted public-safe projection for headless diagnostics.

Presence commands are available for fake-server and later live endpoint integration:

pylon presence register --base-url https://openagents.com
pylon presence heartbeat --base-url https://openagents.com
pylon presence link-complete --base-url https://openagents.com
pylon presence link-refresh --base-url https://openagents.com

Wallet readiness commands wrap MDK without exposing wallet secrets:

pylon wallet status
pylon wallet receive --amount 1000
pylon wallet send --destination-ref payout.bolt12.<hash> --amount 21
pylon wallet admit-payout-target --kind bolt12_offer --ref payout.bolt12.<hash>

Wallet status uses MDK readiness evidence and records idempotent local ledger events. Send readiness remains blocked unless MDK returns explicit evidence; balance and receive readiness are not treated as spendable settlement.

Assignment worker commands are available for signed fake-server and live API smokes:

pylon assignment poll --base-url https://openagents.com
pylon assignment run-no-spend --base-url https://openagents.com

run-no-spend polls for a no-spend lease, applies local admission gates, accepts idempotently, submits progress with artifact/proof refs, and closes the assignment with settlementState: not_applicable and payoutClaimAllowed: false. Paid leases are blocked unless wallet send readiness is explicitly proven.

The runtime includes:

• Apple Foundation Models bridge support, readiness receipts, streaming tool callbacks, and Program Run evidence.
• Gemini direct API and Omega-brokered Gemini materialization.
• Psionic OpenAI-compatible /v1/chat/completions client with text, tool-call loop, streaming delta tool-call parsing, max round-trip guard, and redacted transcript/tool-call receipts.
• Psionic Qwen3.5 model-row admission gates for 0.8B and 2B: rows are advertised only after a retained artifact digest or public-safe manifest ref, and coding-agent selection prefers 2B when both rows are ready.
• Optional Psionic binary/model installer scaffold with explicit --yes consent, macOS/Linux machine checks, release/model manifest verification, SHA-256 verification, and digest-addressed cache placement. This is never part of startup or default package installation.
• Provider-neutral LLM message/request/tool/usage contracts.
• Blueprint signature lookup, tool-menu planning, Action Submission boundaries, and contribution release gates.
• Retained OpenTUI Markdown rendering helpers and markdown/code streaming fixtures.
• GEPA/Terminal-Bench candidate execution, closeout bundles, token telemetry, runner identity, and Omega grant/account contracts.
• Psionic Qwen3.5 attach-only backend discovery and doctor support with PYLON_PSIONIC_BASE_URL / PROBE_PSIONIC_BASE_URL, 0.8B and 2B model-row refs, and redacted availability receipts. See docs/2026-06-09-pylon-qwen35-local-inference-roadmap.md; this is not a training, bundled-model, startup auto-download, or paid-capacity claim.

GEPA Capability Envelope

src/gepa-capability.ts maps v0.3 assignment leases onto the in-repo benchmark runtime contracts. The rc envelope is GEPA-first: retained Terminal-Bench fixtures, Probe runtime backend refs, artifact upload refs, proof/receipt refs, assignment closeout refs, local sandbox isolation, wall-clock/cost budgets, and capacity fields are modeled separately from payout readiness.

This does not advertise neural training or Qwen work. Those tracks remain postponed until the GEPA lease, closeout, import, and payment-mode gates are solid.

Host Inventory

pylon inventory --json

status --json and the dashboard include the same host inventory projection: supported platform, CPU/memory/disk counts, network counts, accelerator class, backend health refs, model-cache state, and blocker refs. The projection does not expose interface names, cache paths, env dumps, provider auth, private topology, or raw local model paths.

Host inventory now includes an optional Psionic Qwen3.5 row. qwen3.5:0.8b is the lowest-footprint smoke/fallback row and qwen3.5:2b is the first coding-agent tool-loop quality row. Machines that cannot or do not want to run local ML keep working with precise Psionic blocker refs and no binary/model download.

Operator Snapshot

pylon operator snapshot --json

The default dashboard includes bounded operate, wallet, inspect, and recovery state. The headless snapshot is for support and service-manager runs: it shows refs, blockers, readiness, and recovery gates without exposing raw wallet material, provider tokens, private repo content, or local cache paths.

Release Gate

bun run release:gate

The local release gate runs tests, JSON smokes, dashboard startup smoke, package dry-run, and local package install smoke. Public copy must stay inside the allowed claim matrix in docs/launch-gates-no-overclaim.md.