Files
executus/CLAUDE.md
T
steve 8b30b9f889 P2: define nil-safe run.Ports (the inversion spine)
Add run/ports.go: the host seams the executor will consume, every one
nil-safe so a light host runs with the zero Ports (no persistence/audit/
budget/critic/delegation/delivery) and a heavy host wires each to a battery.

Ports mirror mort's existing interfaces so the batteries implement them
directly:
- Audit + RunRecorder (mort skillaudit.Storage/Writer): StartRun -> per-run
  recorder (OnStep/OnTool/LogEvent/Close), recorder satisfies RunTally.
- Budget (mort skillexec.BudgetTracker): Check / Commit.
- Critic + CriticHandle (mort agentcritic): Monitor -> handle with
  RecordStep/RecordToolStart/Steer/Deadline/Stop (the loop wiring finalizes
  with the executor merge).
- Checkpointer (mort agentexec.RunCheckpointer): Save/Complete/Fail.
- PaletteSource (mort SkillInvokerForPalette + AgentInvokerForPalette):
  Resolve/Invoke skill + agent delegation.
Plus host-neutral RunInfo / RunStats.

This completes the P2 inversion DESIGN; the agentexec+skillexec ->
run.Executor merge that consumes these Ports is the remaining P2 work.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-26 20:17:26 -04:00

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# executus — developer & agent guide
> ⚠️ **This project is vibe-coded** (AI-authored, human-steered). See `README.md`.
executus is a **batteries-included base for LLM agent harnesses**, layered
strictly above [majordomo]. majordomo is the lean substrate (agent loop, `llm`
types, providers, media, parse/failover/tiering). executus is the opinionated
layer majordomo deliberately omits. **executus requires no majordomo changes**
it decorates `llm.Model` and wraps `majordomo/agent.Agent`.
[majordomo]: https://gitea.stevedudenhoeffer.com/steve/majordomo
## North star
A brand-new project imports executus, does a little setup, and is most of the way
to agentic capabilities. The mechanism is **one shipped default per seam**:
`executus.New()` (once the runtime lands) is agentic with zero host wiring; the
same builder lets a serious host swap each default for its own implementation and
register its own tools.
Two consumers define the envelope:
- **mort** (heavy) — Discord, mortbux, media, MySQL/GORM, DB-backed convar config,
saved skills, audit, scheduling, run-critic.
- **gadfly** (light) — a CI PR-reviewer Docker image, env-var configured, running
an N-models × M-lenses structured-output swarm. Needs model fleet, lanes,
bounded runs, structured output, fan-out, a few read tools — and **none** of the
batteries.
That spread is why executus is **tiered**: a light host imports core only; a heavy
host opts into batteries.
## Module & layering
One module `gitea.stevedudenhoeffer.com/steve/executus`, `go.mod` = **majordomo +
stdlib only** (no gorm/redis/discordgo/cgo). A second nested module
`contrib/store` carries the SQLite dependency so the core never inherits it.
```
CORE (majordomo + stdlib):
config/ ConfigSource seam (+ env default) [P0 ✓]
lane/ bounded fair-share worker pool [P0 ✓]
fanout/ programmatic N×M swarm [P0 ✓]
deliver/ output egress seam (+ Discard/Stdout) [P0 ✓]
identity/ caller identity seams [P0 ✓]
run/ run-loop mechanics + RunnableAgent DTO + [P2 wip]
nil-safe run.Ports (Audit/Budget/Critic/
Checkpointer/PaletteSource) defined; the
agentexec+skillexec -> run.Executor MERGE
(consuming Ports) is the remaining P2 work [P2]
dispatchguard/ loop/depth/fan-out caps [P0 ✓]
pendingattach/ attachment dedupe [P0 ✓]
tool/ registry + 3-stage permissions + ssrf [P1 ✓]
model/ config-driven tier resolution over majordomo [P1]
llmmeta/ shared meta-LLM helper (moves with model/) [P1]
compact/ context compactor (WithCompactor hook) [P2]
tools/{web,net,store,compose,meta,comms} generic tools [P3]
structured/ Generate[T] convenience over majordomo [P1]
BATTERIES (opt-in siblings, each nil-safe + a default):
persona/ Agent noun + AgentStore seam + yml loader [P4]
skill/ rich Skill + SkillStore seam + toml loader [P4]
audit/ run-trace Sink (+ Noop/Slog) [P4]
critic/ two-tier timeout state machine + Escalator [P4]
schedule/ cron runner cores [P4]
checkpoint/ durable resume seam [P4]
budget/ rolling-window tracker (+ NoOp) [P4]
contrib/store/ SECOND module (+ modernc.org/sqlite): [P4]
in-memory + pure-Go SQLite impls of every *Store seam
```
### The one architectural move
The kernel must import **no battery**. In mort today, `agentexec` imports
`agents`, `agentcritic`, and `skillaudit` directly — those three up-pointing edges
get inverted into nil-safe `run.Ports` interfaces (`PaletteSource`, `Critic`,
`Audit`) plus a `RunnableAgent` DTO. Everything else is wide-but-shallow
repackaging.
## Invariants (enforced in CI)
- The core module builds with **majordomo + stdlib only**. `go.sum` must not
contain gorm/redis/discordgo/sqlite/gin.
- No `core/*` package imports a `battery/*` package.
- Standard Go gates: `go build`, `go vet`, `go test -race`, `go mod tidy` clean.
## Extraction roadmap
P0 module + zero-coupling moves + core seams (this) → P1 tool registry + model →
P2 run kernel + Ports inversion → P3 generic tools + defaults → P4 persona/skill
redesign + batteries + SQLite store → P5 gadfly on core (light-tier canary) → P6
rewire mort + tag v0.1.0. The mort-side rewrite reuses mort's existing
`mort_*_adapters.go` wall as the host adapter layer.
## Conventions
- **Keep `README.md`, this `CLAUDE.md`, and `examples/` in sync with every change,
in the SAME commit.** No aspirational docs: when you add/rename a package, change
a seam or a default, or alter the public API, update the docs and the relevant
example so they always reflect reality (mirrors majordomo's house rule). The
status markers in the tier map above must track what's actually landed.
- Mirror majordomo's house style: gofmt; check errors immediately and wrap with
`fmt.Errorf("...: %w", err)`; `// Why:` comments where rationale isn't obvious;
hermetic tests (majordomo's fake provider; no network in the default suite).
- Every seam is an interface with a nil-safe accessor and a shipped default.
- Keep the core seam surface small and stable — push churn into tools and host
adapters, not core interfaces.