文件历史

4 次代码提交

作者 SHA1 备注 提交日期
Asim Aslam 844ab4a14b Add provider-conformance harness, contract test, and reframe docs to 'agent harness' (#3006)
* docs: reposition go micro as agent harness

* ci: rename universe workflow to harness
2026-06-24 11:37:43 +01:00
Asim Aslam 9fdcc24cce Implement durable execution and scoped state management for flows (#2972)
* docs: design note for flow steps + Checkpoint durable execution

* docs: fold in durable-execution decisions (State struct, single Step, run retention, retry)

* docs: rename State.Payload to State.Data

* feat(flow): ordered steps + Checkpoint durable execution

A flow can now be an ordered list of steps (a task with stages) instead
of a single LLM turn. State carries typed Data plus a Stage marker; each
step is checkpointed before and after via a pluggable Checkpoint
(store-backed by default), so a run survives a crash and resumes where it
stopped without re-running completed steps. Flow-level Retry with a
per-step override; runs retained for audit unless DeleteOnSuccess.

Step actions: Call (RPC), LLM (augmented turn), Dispatch (to an agent),
or any StepFunc. Single-step and agent-dispatch flows are unchanged.

* feat(flow): top-level re-exports + durable flow example

Expose the step/checkpoint API from the micro package (FlowSteps,
FlowStep, FlowState, FlowRetry, FlowWithCheckpoint, FlowCall/LLM/Dispatch,
Checkpoint, StoreCheckpoint) and add a runnable, key-free example
demonstrating crash + resume.

* docs: document durable flow steps (guide, README, CLI help)

* docs: blog post + changelog for durable workflows

* fix(flow): scope checkpoint keys by flow name (flow/{name}/runs/{id})

Run keys were flow/runs/{id} — a single global keyspace shared by every
flow on the default store. Namespace them by flow name so each flow's
state is kept apart. StoreCheckpoint now takes a scope argument (the flow
passes its name by default).

* feat(store): Scope handle; scope agent and flow state by name

Add store.Scope(s, database, table) — a store handle that confines every
operation to a database/table without mutating the shared store, so
co-located components don't clobber each other's table (the failure mode
of the global Init(Table(...)) approach).

Use it to keep each agent's memory and plan in its own table
(agent/{name}) and each flow's runs in its own (flow/{name}), instead of
one global table partitioned only by key prefix. Services already scope
by service name.

* feat: consistent state model — service store scoping, flow registry, list/history CLI

- service: scope store via store.Scope (database service / table name),
  retiring the Init(store.Table(name)) global-mutation hack; bridge the
  default store so handlers using store.DefaultStore stay isolated.
- flow: register in the registry as type=flow while running (with trigger
  and step count), deregister on Stop. Live discovery, like agents.
- cli: micro flow list (registry), micro flow runs <name> (durable store),
  micro agent history <name> (durable store). list = running, runs/history
  = durable, mirroring the service model.

* test: mini-universe end-to-end harness + scheduled GitHub Action

internal/harness/universe boots a small but real go-micro world — four
services, a durable checkout flow that crashes at payment and resumes,
and a guardrailed agent with a tool wrapper reached over RPC — drives the
scenario, asserts the end state (10 checks), and shuts down. Everything
is real except the LLM (mocked), so it's deterministic and needs no key;
-provider anthropic runs it live. Exits non-zero on failure, so it's an
end-to-end test, not just a demo.

Adds .github/workflows/universe.yml (push/PR/daily/dispatch) running the
universe + existing harnesses on the mock provider, plus an opt-in job
that runs live when ANTHROPIC_API_KEY is set. 'make harness' runs them
locally.

* ci: run the live universe job against AtlasCloud (ATLASCLOUD_API_KEY)

* ci: run the live universe job only on schedule or manual dispatch

The deterministic mock job still runs on push/PR/daily; the live
(AtlasCloud) job runs daily and on manual workflow_dispatch only, so
changes don't burn API credits on every PR but can still be checked
against a real model on demand.

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-06-17 12:02:47 +01:00
Asim Aslam d3be610367 Refactor README features and add end-to-end flow testing (#2954)
goreleaser / goreleaser (push) Has been cancelled
* docs: group README features by section (AI / Framework / DX)

The features table repeated 'AI' down the Category column. Split into
three grouped tables — AI, Framework, Developer experience & deployment —
dropping the repetitive column. Adds a Guardrails row (MaxSteps,
ApproveTool).

* test: flow-to-agent end-to-end in the harness

Proves 'Flow triggers, Agent reasons': a workflow with FlowAgent hands an
event to the registered conductor agent over RPC, which plans, creates
tasks, and delegates to comms — the whole chain over real RPC with only
the LLM mocked. Deterministic (shared in-memory registry, no sleeps),
passes under -race.

* blog: 'The Evolution of Microservices' (#19)

A technical history of distributed-systems eras — the monolith's
coordination cost, the distributed-systems tax, containers and
declarative orchestration, the service mesh, and the modular-monolith
correction — establishing the durable unit (named, typed, discoverable,
independently deployable) that every runtime wave required. Then the
technical argument for agents: an LLM tool call needs exactly a service
interface, so the caller shifts from deterministic code to a reasoner
that composes typed capabilities from intent, with the honest caveats
(non-determinism, cost, guardrails). Not a product pitch.

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-06-08 09:09:48 +01:00
Asim Aslam e416ea4a75 Enhance agent workflows with guardrails and documentation updates (#2952)
* docs: map go-micro onto Anthropic's workflows-vs-agents taxonomy

- new guide 'Agents and Workflows': adopts Anthropic's Building Effective
  Agents vocabulary — workflow (predefined path) = flow, agent (dynamic
  self-direction) = agent — maps the augmented-LLM building block and the
  five workflow patterns onto go-micro, and shows routing (chat router)
  and orchestrator-workers (conductor + plan/delegate) are already native.
- flow package doc reframed as a workflow (predefined path) per the same
  taxonomy, with guidance on flow vs agent.
- nav + README link the new guide.

* feat: agent guardrails — step limit and tool approval hook

Anthropic's Building Effective Agents stresses stopping conditions and
human-in-the-loop checkpoints for autonomous agents. Add both as plain
options enforced at the tool-handler choke point — no provider changes,
no new abstraction:

- MaxSteps(n): bound tool executions per Ask; beyond the limit, actions
  are refused and the model is told to stop and summarize.
- ApproveTool(fn): gate each action before it runs; returning false
  blocks it and surfaces the reason to the model. The internal plan tool
  is never gated.

Exposed at the micro package (AgentMaxSteps, AgentApproveTool, ApproveFunc).
Tests cover the limit, blocking, and that plan is not gated. Guardrails
section of the agents-and-workflows guide updated from 'active work' to
documented options.

* feat: flow can dispatch to an agent (flow triggers, agent reasons)

Unify the engine without collapsing the workflow/agent distinction. A
Flow with Agent set hands each event's rendered prompt to a named
registered agent over RPC (Agent.Chat) instead of running its own LLM
step — so the workflow stays the deterministic trigger and the agent is
the reasoning engine, with its plan, delegate, memory, and guardrails.
A plain flow is unchanged (single augmented-LLM step).

- flow.Agent(name) / micro.FlowAgent(name); flow stores the client and
  skips model setup when dispatching.
- test: dispatch routes to comms.Agent.Chat with the rendered prompt and
  records the reply.
- guide: 'Flow triggers, Agent reasons' section.

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-06-08 08:32:32 +01:00