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Signed-off-by: Pratik Mankawde <3397372+pratikmankawde@users.noreply.github.com>
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Pratik Mankawde
2026-03-10 15:29:56 +00:00
parent 32a2fd7460
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docs/harness-engineering-report.md
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@@ -14,7 +14,7 @@ OpenAI coined **"Harness Engineering"** to describe the discipline of building i
The rippled OpenTelemetry initiative — now spanning 12 chained PRs from Phase 1a through Phase 11 planning — is **uniquely positioned** to become the observability backbone of a harness engineering strategy. The OTel work already delivers 3 of the 5 harness engineering principles. This report maps the gap and proposes a concrete adoption path.
```mermaid
flowchart LR
flowchart TB
subgraph today["What We Have Today"]
direction TB
OTel["OTel Instrumentation<br/>16 spans, 300+ metrics<br/>8 Grafana dashboards"]
@@ -25,11 +25,11 @@ flowchart LR
subgraph gap["The Gap"]
direction TB
ARCH["ARCHITECTURE.md<br/>(codebase map)"]
ARCH["ARCHITECTURE.md<br/>(codebase map, sample ready)"]
LINT["Semantic Linting<br/>(agent-friendly errors)"]
BOUND["Three-Tier Boundaries<br/>(Always/Ask/Never)"]
VERIFY["Deterministic Verification<br/>(OTel-powered)"]
WORKFLOW["WORKFLOW.md<br/>(agent orchestration)"]
WORKFLOW["WORKFLOW.md<br/>(agent orchestration, sample ready)"]
end
subgraph future["Agent-First rippled"]
@@ -81,13 +81,13 @@ What actually worked was building **infrastructure** that makes agents effective
### 1.2 The Five Principles
| # | Principle | Definition | rippled Status |
| --- | ------------------------------ | -------------------------------------------------------------------- | -------------------------------------------------------- |
| 1 | **Deterministic Verification** | Verify agent output with automated checks — don't trust, verify | Partial (CI exists, OTel validation planned in Phase 10) |
| 2 | **Semantic Linting** | Linter messages teach agents how to fix violations in one shot | Missing |
| 3 | **Three-Tier Boundaries** | Every harness defines Always / Ask / Never action categories | Partial (CLAUDE.md has some rules) |
| 4 | **Fail-Fast Feedback** | Fast checks first (lint, typecheck), slow checks later (integration) | Partial (CI runs, but not agent-optimized) |
| 5 | **Architecture as Map** | ARCHITECTURE.md tells agents _where_ things are, not _why_ | Missing (plan docs explain _why_, not _where_) |
| # | Principle | Definition | rippled Status |
| --- | ------------------------------ | ----------------------------------------------------------------------------- | -------------------------------------------------------- |
| 1 | **Deterministic Verification** | Verify agent output with automated checks — don't trust, verify | Partial (CI exists, OTel validation planned in Phase 10) |
| 2 | **Semantic Linting** | Linter messages teach agents how to fix violations in one shot | Missing |
| 3 | **Three-Tier Boundaries** | Every harness defines Always / Ask / Never action categories | Partial (CLAUDE.md has some rules) |
| 4 | **Fail-Fast Feedback** | Fast checks first (lint, typecheck), slow checks later (integration) | Partial (CI runs, but not agent-optimized) |
| 5 | **Architecture as Map** | [ARCHITECTURE.md](ARCHITECTURE.md) tells agents _where_ things are, not _why_ | Missing (plan docs explain _why_, not _where_) |
### 1.3 Symphony: The Orchestration Layer
@@ -282,11 +282,11 @@ quadrantChart
Full Symphony Deployment: [0.88, 0.58]
```
### 3.2 Principle #5: Architecture as Map (ARCHITECTURE.md)
### 3.2 Principle #5: Architecture as Map ([ARCHITECTURE.md](ARCHITECTURE.md))
**Current state**: The OTel plan docs (01-architecture-analysis.md) describe rippled's architecture in detail, but they're _plan docs_ — they explain _why_ to instrument, not _where things are_ for an agent navigating the codebase.
**What's needed**: A top-level `ARCHITECTURE.md` that serves as the agent's map.
**What's needed**: A top-level [`ARCHITECTURE.md`](ARCHITECTURE.md) that serves as the agent's map.
**Sample created**: See [ARCHITECTURE.md](ARCHITECTURE.md) — a working example covering all sections below.
@@ -407,17 +407,17 @@ flowchart LR
Key: **fail at Tier 1 → agent gets feedback in seconds**, not after a 30-minute build.
### 3.6 WORKFLOW.md: Agent Orchestration Policy
### 3.6 [WORKFLOW.md](WORKFLOW.md): Agent Orchestration Policy
If rippled adopted Symphony (or a similar orchestrator), the `WORKFLOW.md` would define the agent's runtime behavior.
If rippled adopted Symphony (or a similar orchestrator), the [`WORKFLOW.md`](WORKFLOW.md) would define the agent's runtime behavior.
**Sample created**: See [WORKFLOW.md](WORKFLOW.md) — a complete, Symphony-spec-compatible workflow definition including:
- **Front matter**: Tracker config, polling interval, workspace hooks, agent concurrency, Codex settings
- **Hooks**: `after_create` (clone + build setup), `before_run` (tiered lint -> build -> test), `after_run` (proof-of-work collection)
- **Prompt body**: Navigation table (ARCHITECTURE.md, CLAUDE.md, CodingStyle.md), three-tier action boundaries (Always/Ask/Never), fail-fast verification steps, telemetry-aware file patterns, Liquid template variables for issue context, proof-of-work checklist
- **Prompt body**: Navigation table ([ARCHITECTURE.md](ARCHITECTURE.md), CLAUDE.md, CodingStyle.md), three-tier action boundaries (Always/Ask/Never), fail-fast verification steps, telemetry-aware file patterns, Liquid template variables for issue context, proof-of-work checklist
The WORKFLOW.md is version-controlled in the repo so agent policy evolves with the code.
The [WORKFLOW.md](WORKFLOW.md) is version-controlled in the repo so agent policy evolves with the code.
---
@@ -472,27 +472,27 @@ flowchart TB
### 4.2 Effort Estimates
| Phase | Task | Effort | Dependencies |
| ----- | --------------------------------- | ---------- | ---------------------- |
| **A** | ARCHITECTURE.md | 2d | None |
| **A** | CLAUDE.md boundaries update | 0.5d | None |
| **A** | Pre-commit hooks | 1d | None |
| **A** | OTel baseline verification script | 2d | OTel Phases 1-6 merged |
| **B** | Semantic linting config | 2d | Phase A complete |
| **B** | Tiered CI pipeline | 3d | Phase A complete |
| **B** | Metric regression CI check | 2d | OTel Phase 7 merged |
| **B** | Phase 10 synthetic workload | 10d | OTel Phase 9 merged |
| **C** | WORKFLOW.md | 1d | Phases A+B complete |
| **C** | Orchestrator setup | 3d | WORKFLOW.md defined |
| **C** | Jira integration | 2d | Orchestrator running |
| **C** | First autonomous runs | 2d | Everything above |
| | **Total** | **~30.5d** | |
| Phase | Task | Effort | Dependencies |
| ----- | ---------------------------------- | ---------- | ---------------------------------- |
| **A** | [ARCHITECTURE.md](ARCHITECTURE.md) | 2d | None |
| **A** | CLAUDE.md boundaries update | 0.5d | None |
| **A** | Pre-commit hooks | 1d | None |
| **A** | OTel baseline verification script | 2d | OTel Phases 1-6 merged |
| **B** | Semantic linting config | 2d | Phase A complete |
| **B** | Tiered CI pipeline | 3d | Phase A complete |
| **B** | Metric regression CI check | 2d | OTel Phase 7 merged |
| **B** | Phase 10 synthetic workload | 10d | OTel Phase 9 merged |
| **C** | [WORKFLOW.md](WORKFLOW.md) | 1d | Phases A+B complete |
| **C** | Orchestrator setup | 3d | [WORKFLOW.md](WORKFLOW.md) defined |
| **C** | Jira integration | 2d | Orchestrator running |
| **C** | First autonomous runs | 2d | Everything above |
| | **Total** | **~30.5d** | |
### 4.3 What to Do Immediately
These four items require no OTel dependencies and can start today:
1. **Create `ARCHITECTURE.md`** — 300-line codebase map covering the 5 layers (RPC, NetworkOPs, Consensus, Ledger, NodeStore), module directory map, entry points, and telemetry coverage map linking to `09-data-collection-reference.md`
1. **Create [`ARCHITECTURE.md`](ARCHITECTURE.md)** — 300-line codebase map covering the 5 layers (RPC, NetworkOPs, Consensus, Ledger, NodeStore), module directory map, entry points, and telemetry coverage map linking to `09-data-collection-reference.md`
2. **Add Three-Tier Boundaries to `CLAUDE.md`** — Explicit Always/Ask/Never categories (see Section 3.3 above)
@@ -506,14 +506,14 @@ These four items require no OTel dependencies and can start today:
### 5.1 Why rippled Is Especially Well-Suited
| Advantage | Explanation |
| ------------------------------ | ----------------------------------------------------------------------------------------- |
| **Deterministic consensus** | Consensus rounds produce predictable telemetry — ideal for regression detection |
| **Isolated test networks** | 5-node validator harness gives agents a safe, isolated sandbox |
| **Rich telemetry baseline** | 16 spans + 300+ metrics + 8 dashboards = comprehensive "expected state" |
| **Protocol Buffer boundaries** | Wire format changes are explicit and lintable — agents can't silently break compatibility |
| **Existing CLAUDE.md** | Already have an agent instruction file — just needs boundary tiers |
| **Modular plan docs** | 10 architecture docs serve as deep reference material for ARCHITECTURE.md links |
| Advantage | Explanation |
| ------------------------------ | -------------------------------------------------------------------------------------------------- |
| **Deterministic consensus** | Consensus rounds produce predictable telemetry — ideal for regression detection |
| **Isolated test networks** | 5-node validator harness gives agents a safe, isolated sandbox |
| **Rich telemetry baseline** | 16 spans + 300+ metrics + 8 dashboards = comprehensive "expected state" |
| **Protocol Buffer boundaries** | Wire format changes are explicit and lintable — agents can't silently break compatibility |
| **Existing CLAUDE.md** | Already have an agent instruction file — just needs boundary tiers |
| **Modular plan docs** | 10 architecture docs serve as deep reference material for [ARCHITECTURE.md](ARCHITECTURE.md) links |
### 5.2 Risks and Mitigations
@@ -1167,16 +1167,16 @@ The broader ecosystem emerging around harness engineering:
## Appendix C: Glossary
| Term | Definition |
| ------------------------- | ------------------------------------------------------------------------------------------------ |
| **Harness Engineering** | Building infrastructure around AI coding agents to enable reliable autonomous development |
| **Proof of Work** | Evidence that an agent's changes are correct: CI pass, metric stability, trace validity |
| **Three-Tier Boundaries** | Categorizing agent actions into Always (autonomous), Ask (confirm), Never (forbidden) |
| **WORKFLOW.md** | Version-controlled file defining agent orchestration policy, prompt template, and runtime config |
| **Implementation Run** | A complete autonomous cycle: read issue -> implement -> verify -> PR |
| **Semantic Linting** | Linter errors that include enough context for an agent to fix the violation in one attempt |
| **Architecture Map** | A concise document (`ARCHITECTURE.md`) telling agents where things are in the codebase |
| **MCP** | Model Context Protocol — standard for connecting AI agents to external tools and data sources |
| **MCP Server** | A service exposing tools/resources via MCP that agents can invoke (e.g., GitHub MCP, Jira MCP) |
| **Bug Bounty** | Program rewarding external researchers for responsibly disclosing security vulnerabilities |
| **Hand** | OpenFang's autonomous capability package — bundles tools, prompts, guardrails, and schedules |
| Term | Definition |
| ------------------------------ | ------------------------------------------------------------------------------------------------ |
| **Harness Engineering** | Building infrastructure around AI coding agents to enable reliable autonomous development |
| **Proof of Work** | Evidence that an agent's changes are correct: CI pass, metric stability, trace validity |
| **Three-Tier Boundaries** | Categorizing agent actions into Always (autonomous), Ask (confirm), Never (forbidden) |
| **[WORKFLOW.md](WORKFLOW.md)** | Version-controlled file defining agent orchestration policy, prompt template, and runtime config |
| **Implementation Run** | A complete autonomous cycle: read issue -> implement -> verify -> PR |
| **Semantic Linting** | Linter errors that include enough context for an agent to fix the violation in one attempt |
| **Architecture Map** | A concise document (`ARCHITECTURE.md`) telling agents where things are in the codebase |
| **MCP** | Model Context Protocol — standard for connecting AI agents to external tools and data sources |
| **MCP Server** | A service exposing tools/resources via MCP that agents can invoke (e.g., GitHub MCP, Jira MCP) |
| **Bug Bounty** | Program rewarding external researchers for responsibly disclosing security vulnerabilities |
| **Hand** | OpenFang's autonomous capability package — bundles tools, prompts, guardrails, and schedules |