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fix(run): address gadfly review of the phases PR
Real findings from the consensus review (37 raw; many devstral dups/noise):

- Optional/budget-salvage branches no longer swallow a context
  cancellation / deadline / critic-kill: such errors return immediately so
  the run is classified cancelled/timeout/killed, not "ok" with a fallback.
  (the most serious finding — an Optional final phase could mask a killed run)
- IsRunFunc bare phase now feeds the SHARED step observer (not just the
  audit recorder), so the critic's activity clock + Result.Steps see it —
  a long synthesize phase no longer looks idle to the critic.
- phaseModel returns the resolver's enriched (usage-attribution) context and
  the phase's calls use it, mirroring the single-loop path (non-base-tier
  phases were mis-attributed).
- salvagePhaseTranscript trims the tail on a rune boundary (was a raw byte
  slice that could split a UTF-8 rune); maxSalvage is now a named const with
  rationale.
- expandPhaseTemplate logs a WARN on parse/execute failure instead of
  silently returning the unexpanded template; documented the phase-name
  identifier requirement + the "Query" shadow.
- removed the dead phaseDeps.baseTier field.
- extracted multimodalUserMessage, shared by runAgent + the phase runner
  (was duplicated image-folding).
- aggregated phase usage is stamped onto the result even on a hard-error
  return; TrimSpace computed once; filterToolbox returns the base toolbox
  as-is for the empty-names (full-palette) case instead of copying;
  phaseModel WARN no longer prints error=<nil>.

New test: Optional phase does not swallow a cancellation. Full ./... green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-29 15:44:04 -04:00

executus

⚠️ This project is vibe-coded. executus is written almost entirely by an AI coding agent (Claude), with a human steering at the design and review level rather than typing the code. That's a deliberate choice, stated up front — the same way gadfly is. Read the code before you depend on it, pin a version, and file issues if something looks off. It is offered as-is.

A batteries-included base for building LLM agent harnesses in Go. Import it, do a little wiring, and you have agentic capabilities: a bounded run loop, a tool registry with a suite of common tools, context compaction, config-driven model tiering and failover, structured output, and parallel fan-out — with sensible defaults so a brand-new project is agentic with almost no setup, and pluggable seams so a serious host can swap in its own storage, config, delivery, and tools.

executus sits strictly above majordomo — the lean LLM substrate (agent loop, canonical llm types, providers, media normalization, model parsing / failover / tiering). majordomo stays the substrate; executus is the opinionated, batteries-included layer on top. executus requires no changes to majordomo.

Status

Early. Being extracted, phase by phase, from the agent layer of mort (a Discord bot) — mort and gadfly are the first two consumers (heavy and light). See CLAUDE.md for the architecture and the extraction roadmap (P0P6).

Available today:

  • run/executus is runnable. run.Executor ties model resolution, the tool registry, majordomo's agent loop, context compaction, run-bounding, and step/audit instrumentation into one Run(ctx, RunnableAgent, inv) Result, with every host concern behind a nil-safe run.Ports (Audit/Budget/Critic/ Checkpointer/PaletteSource/Delivery/InputFiles). See examples/minimal.
  • model/ — config-driven tier resolution + failover over majordomo, with pluggable UsageSink/TraceSink and GenerateWith[T] structured output.
  • tool/ — the tool registry + 3-stage permission model + SSRF guard.
  • compact/ — the per-run context compactor.
  • lane/ — bounded worker pool with fair-share queueing (run- and provider-concurrency).
  • fanout/ — programmatic N×M swarm with bounded global + per-key concurrency.
  • config/, deliver/, identity/ — host seams (config / output / identity), each with a shipped default.
  • dispatchguard/, pendingattach/ — run-safety primitives.
  • examples/reviewer — a gadfly-shaped PR reviewer on the core only (env-config model fleet → fanout N×M swarm → model.GenerateWith[T] structured findings → consolidation), the light-tier canary; CI asserts it pulls in no battery.

Design

Two tiers in one module (go.mod = majordomo + stdlib only):

  • Core — everything a light host needs to be agentic: run loop, tool registry + common tools, model resolution, compaction, lanes, fan-out, structured output. No persistence, no scheduling.
  • Batteries (opt-in sibling packages) — persona/agent nouns, saved skills, audit, run-critic, scheduling, budgets, checkpointing. Each is nil-safe and ships a default, so you add only what you use.

Persistence that needs a real database lives in a separate nested module (contrib/store, pure-Go SQLite) so the core never drags in a DB driver — a static-binary host (gadfly) stays static.

License

TBD.

S
Description
Batteries-included base for building LLM agent harnesses in Go (above majordomo). Vibe-coded.
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