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作者 SHA1 备注 提交日期
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.

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Co-authored-by: Claude <noreply@anthropic.com>
2026-06-17 12:02:47 +01:00
Asim Aslam 5e5d253abd feat(agent): tool-execution wrappers via WrapTool (#2969)
Restructure ai.ToolHandler to the structured, ctx-carrying shape that
mirrors a go-micro RPC handler:

    func(ctx context.Context, call ai.ToolCall) ai.ToolResult

This reuses the existing ToolCall (with its correlation ID) and
ToolResult types instead of the flat (name, input)->(any, string)
signature, and adds ToolCall.Scan for typed argument access.

Add ai.ToolWrapper and the agent option WrapTool / micro.AgentWrapTool —
the tool-side analogue of client.CallWrapper and server.HandlerWrapper.
Reframe the built-in guardrails (MaxSteps, LoopLimit, ApproveTool) as
composed wrappers around a base handler; developer wrappers compose
outermost, so they observe every call and result, including refusals.

Update all provider call sites, the MCP server and chat handlers, the
integration harnesses, and docs to the new signature.

Co-authored-by: Claude <noreply@anthropic.com>
2026-06-16 16:26:56 +01:00
Asim Aslam 6eec83a045 blog: 'When the Event Is the Prompt' (#21) + autonomous agent-flow harness (#2962)
The autonomy direction: agents that run on events, not human prompts.

- internal/harness/agent-flow: a runnable, deterministic demo — a
  user.created broker event drives a Flow that hands off to a registered
  agent (FlowAgent), which creates a workspace and sends a welcome over
  real RPC. Only the LLM is mocked; passes under -race.
- blog/21: 'When the Event Is the Prompt' — the shift from agents you
  talk to, to agents that act on their own; where microagents become
  real; and the honest bar autonomy raises (guardrails, observability,
  durable/resumable execution — the next things to build).

Co-authored-by: Claude <noreply@anthropic.com>
2026-06-15 12:16:08 +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.

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Co-authored-by: Claude <noreply@anthropic.com>
2026-06-08 09:09:48 +01:00
Asim Aslam 830c8d84c2 Claude/loving meitner 3 etoi (#2951)
* rename coordinator agent to conductor in example and docs

* add plan & delegate integration harness

Runs the real go-micro stack end to end — services, registry, RPC, the
agent loop, store, and delegate-first routing — with only the LLM mocked
by a deterministic provider. Proves discovery, tool execution, plan
persistence, and agent-to-agent delegation over RPC work without an API
key; swap the provider to run the same flow against a live model.

* test: deterministic CI integration test + provider flag for harness

- main_test.go: TestPlanDelegateEndToEnd drives the full real stack
  (services, RPC, agent loop, store, delegate-first routing) over a
  shared in-memory registry — no mDNS, no sleeps. Asserts 3 tasks
  created via RPC, plan persisted to the store, and delegation reaching
  the comms agent (notify called once). Passes under -race, ~0.03s.
- main.go: add -provider flag (defaults to mock) and key detection so the
  same harness runs against a live model with no code change.

* chore: gitignore built harness/example binaries

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Co-authored-by: Claude <noreply@anthropic.com>
2026-06-07 19:28:24 +01:00