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fusion/docs
gsxdsm 89aaf341d0 the unwired-seam audit: 9 defects the census cannot see, incl. a reviewed card that cannot merge (#2820)
**Nine operator-visible defects in a class the census cannot see, plus
the audit method that found them.**

The census scans for lifecycle-column **comparisons**. This PR is about
guards that have no literal to find: a helper takes an optional
*resolved* lane set, its own test passes it, the census entry is gone —
and the callers pass nothing. **A resolved seam nobody wired is
indistinguishable from no seam at all.**

## What was broken

| defect | operator sees |
| --- | --- |
| `getTaskMergeBlocker` unwired in `mergeTaskImpl` | `Cannot merge FN-1:
task is in 'checking', must be in 'in-review'` — **a reviewed card
cannot merge** |
| …and in the completion move | `Cannot move FN-1 to done: …` — **and
cannot complete** |
| `isParkedTaskColumn` unwired ×2 (`agent-heartbeat`) | a durable agent
keeps claiming a parked card; **Health Check renders it RUNNING** |
| `resolveLinkSyncColumnRoles` first-per-role | link hygiene skips a
**second hold lane** entirely |
| `executor` active-task predicate first-per-role | a card in a **second
wip lane reads as INACTIVE**; its prompt file becomes reclaimable |
| `isPlanningContinuationTaskDispatchable` partially threaded | a board
declaring `done` as *non-terminal* stalls its cards — **stalled by a
lane name** |
| `default-workflow-hooks:72`, `executor:2404` | resolved gate admits
the move, unresolved blocker refuses it |

## The recurring shape, which is sharper than "a caller forgot an
argument"

Four sites resolve the lane and then re-ask with the literal, **a few
lines apart in the same function**:

- `task-artifacts-ops` resolves `completeColumn`, then asks the blocker
with the literal.
- `default-workflow-hooks:72` gates on `lifecycleColumns?.review`, then
the literal.
- `executor:2404` compares `resolveResumeLanes(…).review`, then the
literal.
- `resolvePlanningContinuationCandidate` applies the caller's terminal
set, then delegates without it.

**Grep for the helper, not the literal.** The literal is one function
away, correctly annotated as a fallback — which is exactly why the
census is blind to all of it.

## The arity trap, named and measured (six occurrences, one caught by
review here)

`resolveLifecycleColumns` answers *"which column is **the** hold
lane?"*. A `.includes()`/`.has()` test asks *"is this **any** hold
lane?"*. Nothing distinguishes them — same types, no literal.

**A default-vs-renamed differential cannot catch it**, because the
default board declares one column per role and therefore cannot express
the failing shape. It needs a *structurally* different fixture. That is
a sharper rule than "test both vocabularies", and it would have caught
all six.

Scanned: 12 candidate sites. **4 fixed · 3 blocked (2 on the inert sync
IR reader; `triage:833` also query-shaped) · 1 needs a hook-contract
change · 3 not defects (a returned tuple; an ordering-sensitive
precedence list) · 1 false positive of my own scan.**

A sweep over all twelve would have broken the ordering-sensitive pair,
delivered nothing at the sync-blocked ones, and "fixed" a site that was
already correct.

## Two traps in fixing this class — I hit both here

1. **The legacy id is a FALLBACK, not a member.** Pre-seeding
`"in-review"` admits a board that *declares* `in-review` as its WIP
column — a card mid-implementation merges prematurely. A real resolved
answer must **replace** the default. (Caught by review; it is the same
unscoped-legacy-acceptance the glasses plugin's review caught earlier,
which I had read and reintroduced.)
2. **Two guards, one assertion.** `toContain("must be in")` passed with
`mergeTaskImpl` reverted, because the *completion* guard caught the card
instead. The assertion now names the site (`Cannot merge` vs `Cannot
move … to done`) so the two fail independently.

## Corrections I made to my own work, recorded rather than quietly fixed

- My first PG test was **vacuous three ways**:
`saveWorkflowDefinition?.()`/`setTaskWorkflowSelection?.()` do not exist
(the `?.` swallowed both, so the task kept the builtin workflow),
`updateTask({column})` does not move a card, and a two-node IR made
every setup move illegal. Premise is now **asserted**, not assumed.
- My doc claimed the audit was complete. It enumerated **helpers**, not
every **caller** — `getTaskMergeBlocker` alone has 13 call sites.
Corrected in place, with the still-unwired ones listed by file and line
and a note to distrust any "audit complete" claim including mine.
- A severity correction to another worker's E2E:
`selectActionablePlanningContinuations` has **no production caller**, so
its stated consequence is latent, not live.

## Verification

- `pnpm test:gate` — 161 + 487 + 13 + 71
- `tsc` on core and engine; `pnpm lint`; `check:changesets`; census
`--strict` — all clean, each run explicitly
- Every fix revert-measured; each has a non-vacuous companion. The
two-hold-lane and repurposed-`in-review` cases exist because the default
board cannot express those shapes.

## Deliberately not done, with reasons in
`resolved-seams-nobody-wired.md`

`isTaskReadyForMerge` (dead in production — wiring it would be the
anti-pattern itself); `getTaskHardMergeBlocker` (3 of 4 callers are
query-gated sweeps); `getInReviewStallReason` (needs a **batch
prefetch**, not a per-task resolve — its callers decorate every task on
every list read; the in-review stall badge is wrong on renamed boards
until then); `default-workflow-hooks` planning/live-work sets (needs
`DefaultWorkflowMoveContext` to carry the IR — a shared contract
change).
2026-07-30 15:08:01 -07:00
..

Fusion Documentation

← Back to repository root

Fusion is an AI-orchestrated task board that turns ideas into reviewed, merged code using a structured workflow: planning → todo → in-progress → in-review → done.

Fusion Dashboard Overview

Quick Start

Start the local dashboard with pnpm dev dashboard, then create your first task from the board or CLI.

For a full walkthrough (installation, onboarding, first task, and daily workflow basics):

➡️ Getting Started

Documentation Index

Getting Started

Guide Description
Getting Started Installation, first-run, first task, and daily workflow basics
Dashboard Guide Board/list views, left/right sidebar navigation, Artifacts, Import Tasks, chat, workflow selection/editor, terminal, git manager, files, planning, and UI tools
CLI Reference Complete fn command reference with subcommands, flags, and examples
Remote Access Operator runbook for Tailscale/Cloudflare setup, tokenized login links, security caveats, and troubleshooting
Native Shell Connection Guide Canonical mobile/desktop shell onboarding, profile management, QR/manual setup, and remote handoff behavior

Task & Project Management

Guide Description
Task Management Task creation modes, lifecycle, prompt specs, comments, archiving, and GitHub integration
Todo View Canonical guide for the experimental Todo View, including enablement, usage, API routes, and storage
Missions Mission hierarchy, planning flow, activation, progress tracking, and autopilot behavior
Goals Refinement Gate Evidence gate for activating the conditional post-v1 goals refinement slice only after real usage pain is documented
Goals Refinement Evidence Pack Structured observation template and two-observation threshold for conditional Slice 4 activation requests
Research Research runs, provider setup, dashboard/CLI usage, findings, exports, and task integration
Research View UX Spec Canonical layout and capability-state messaging spec for the Research dashboard view (FN-4138, informs FN-4134/FN-4135)
Workflow Steps Workflow overview, built-in workflow catalog, per-task selection, runtime semantics, reusable quality gates, templates, phases, and execution results
Workflow Editor Visual workflow editor guide for opening, viewing, authoring, validating, importing/exporting, custom fields/columns/settings, and tuning workflows
Custom Workflow Reliability Acceptance Map End-to-end reliability acceptance criteria for custom workflow authoring, selection, execution, recovery, restart durability, and deferred journeys
Custom Non-Coding Workflows MVP Spec MVP framing for user-authored non-coding workflows, lifecycle mapping, metrics, and risk checklist
Task Evaluations Eval scoring contract, evidence persistence, score categories, and evaluation pipeline
Multi-Project Central registry architecture, project management, isolation modes, and migration paths

Configuration & Agents

| Settings Reference | Global/project settings, workflow setting values, model/fallback lane hierarchy, defaults, and API endpoints | | MCP | Model Context Protocol server configuration, secret references, validation, CLI, dashboard, and import/export workflows | | Agents | Agent management, presets, prompts, heartbeat behavior, spawning, and mailbox workflows | | Planner Oversight (see Settings Reference, Dashboard Guide, Architecture) | Workflow-native oversight levels (off/observe/steer/autonomous), per-task overrides, notification verbosity, the human-confirmation gate on merge/PR and destructive actions, and the Task Detail overseer controls/Intervention Timeline |

Architecture & Development

Guide Description
Architecture System architecture, package layout, storage model, and engine execution flow
Secrets Store (SecretsStore) Core encrypted secret subsystem overview: scopes, AES-256-GCM at-rest model, policy semantics, and public store API surface
Dashboard Real-Time Canonical event-stream architecture contract (shared /api/events bus + dedicated stream boundaries), with project/node scoping, reconnect/cleanup behavior, and realtime pitfalls
Storage PostgreSQL runtime storage, archive, migration compatibility, and file-backed payloads
DAG Architecture Deliverables Milestone A DAG architecture documents plus Milestone B prototype scaffold docs (schema migration plan, DagCoordinator design, implementation checklist)
Dev Server Module Audit Analysis of parallel dashboard dev-server module families, production wiring, and consolidation guidance
Shared Cluster Protocol Shared PostgreSQL multi-node contract: claims/leases, membership, auth, and retired multi-leader mesh replication
Signals Connectors HMAC-signed external signal connectors for setup, payload mapping, and security notes across Sentry, Datadog, PagerDuty, and generic webhooks
Multi-Project Sequencing and Dependency Analysis Sequencing guidance for FN-3448/FN-3449/FN-3503/FN-3182, including identity boundaries and recommended board dependency edges
Contributing Local development setup, testing, release flow, and contributor conventions
Docker Container builds, deployment, and persistence configuration
Code Signing macOS and Windows code signing configuration for release binaries
Diagnostics Engine diagnostic logging subsystems, structured log keys, and key diagnostic points catalog
Sandbox Backends Pluggable sandbox backends for executor command isolation (bubblewrap, spawn-based)
Secrets Encrypted secrets storage, per-secret access policies, scopes, and agent tool wiring
Testing Full testing lanes, worker fanout guidance, test taxonomy, and file organization
Real iOS Safari Acceptance Surface Provisioning runbook and harness usage for terminal verification gates on physical or cloud real-iOS Safari
Solutions Catalog Documented solutions to past problems (bugs, architecture patterns, best practices) organized by category
Localization Contributing Guide Conventions for contributing translations, locale file structure, and i18n tooling
Mobile Capacitor/PWA mobile development setup and workflow

Plugins

Guide Description
Plugin Management End-user guide for discovering, installing, enabling, configuring, updating, uninstalling, and troubleshooting Fusion plugins
Plugin Authoring Developer guide for building Fusion plugins (manifest, SDK hooks, routes, UI/runtime contributions)
Even Realities Glasses Plugin Task-focused Even Realities glasses bridge with quick capture, polling notifications, and agent actions
Reports Plugin Reports plugin rendering, export, standalone HTML generation, and section configuration
Even Realities Plugin API Even Realities plugin API endpoint reference and test coverage matrix
Memory Plugin Contract Pluggable memory backend architecture, interface contract, and migration strategy
Compound Engineering Plugin CE workflow dashboard surface: artifact hub, interactive sessions, work→board bridge, and bidirectional sync
External Plugin Authoring Step-by-step guide for authoring plugins using an installed fn CLI (no monorepo access needed)
External Plugin Proof-Point Runbook Repeatable release-validation runbook for proving an external plugin runs against a published Fusion CLI build

Audit Reports

Report Description
Test Feedback-Loop Baseline Weekly FN-6612 signal-per-second baseline for gate/test wall-time, slowest files, and quarantine trends
Test Value Audit Heuristic test-value audit generated by scripts/test-value-audit.mjs to support human deletion and review decisions
Test Velocity Baseline Weekly feedback-loop velocity baseline for merge-gate, boot-smoke, changed-test, and quarantine metrics
UX Audit Report Comprehensive UX audit with prioritized recommendations for dashboard improvements
Codebase Improvement Audit Evidence-based technical debt and reliability gap audit with prioritized recommendations
Gap Analysis System completeness analysis comparing Fusion to Paperclip feature set
Permanent Agent Heartbeat Playbooks Worked manager/IC/message/blocked/no-task heartbeat scenarios and anti-patterns
Agent Sandbox Research Research on agent isolation, capability enforcement, and sandboxing approaches
Even Realities Integration Research (FN-3737) Research summary and recommended integration topology for Even Realities glasses + Fusion
pi-autoresearch Analysis for Fusion Port Upstream architecture/license analysis and Fusion integration mapping for autoresearch capabilities
pi-autoresearch Audit vs Fusion Research Audit comparing Fusion's research subsystem against upstream pi-autoresearch capabilities and parity gaps (FN-4136)
Research Hardening Preflight Baseline Verified research subsystem baseline, lifecycle contracts, and hardening pressure points
Test Audit Report Test coverage and effectiveness audit with recommendations
Skipped Test Inventory Current intentional test-skip inventory and reconciliation status for older skip follow-ups
Dev Server Module Boundary Audit Boundary/ownership audit for parallel dev-server-* vs devserver-* dashboard modules and FN-2212 prioritization guidance
spawn_agent Approval Evaluation (FN-3973) Decision to keep fn_spawn_agent under generic action-gate governance rather than durable agent provisioning policy
Task Lineage Reconciliation Notes Historical task-ID reuse patterns, confidence semantics for commit attribution, and reconciliation methodology (FN-3953, FN-3998)
Dashboard Load Performance (historical) Pre-cutover SQLite index analysis retained for performance archaeology
CLI Printing Press Plugin Design Architecture design for the CLI printing press bundled plugin (FN-3762)
CLI Printing Press Research Upstream cli-printing-press analysis and Fusion integration mapping (FN-3761)
Research vs Experiment Session Naming Decision Naming decision record: hybrid approach retaining research_* for cited-search/synthesis and adding experiment_session_* for upstream parity (FN-4223)
Experiment Executor Design Experiment executor architecture: lifecycle, run state machine, and worktree isolation model
Experiment Finalize Flow Experiment finalize contract: branch grouping, dry-run planning, and session completion semantics
Experiment Session Model Experiment session data model: state transitions, iteration tracking, and persisted run state
Experiment Session MVP Spec MVP specification for the experiment session feature: scope, invariants, and delivery milestones
Sandbox Options Research (FN-4635) Pluggable sandbox options research: threat model, backend evaluation, and spawn-based isolation design
Triage Duplicate Detection Postmortem Postmortem on duplicate task detection gaps and scheduler dedup hardening
Multi-Node Runtime Readiness (FN-4814) Runtime readiness assessment for multi-node distributed coordination
Distributed Multi-Node Coordination Gap (FN-4819) Gap analysis for distributed multi-node agent coordination and cross-node task assignment
Cross-Node Assignment Wake Contract (FN-4824) Contract specification for cross-node task assignment wake signaling
Multi-Node Coordination Validation Findings (FN-4820) Validation findings from multi-node coordination testing and edge-case analysis
Secrets Sync Auth Parity Review (FN-4886) Review of node secrets sync API authentication parity and security boundaries
Test Speed Audit (FN-5048) Measured baseline test performance, offender list, and optimization priorities
Soft-Delete Verification Matrix Authoritative checklist for the FN-5105 → FN-5143 soft-delete stream: scenario × layer coverage
Self-Healing Backward Move Audit Audit of self-healing backward-move safety checks and edge-case validation
Workflow Policy Ownership Map U1 characterization map classifying production merge, retry, scheduling, and recovery policy branches before workflow-policy migration cutover
Test-Speed Baseline (2026-06-03) Measured per-file test timing baseline and optimization targets (successor to FN-5048 audit)
ACP Runtime Contract Agent Client Protocol plugin launch/readiness contract and failure taxonomy
ACP MCP Passthrough & Permission Forwarding Upstream Sponsorship (FN-6475) Ready-to-file upstream sponsorship for claude-code-cli-acp ACP session/new.mcpServers passthrough and permission-gate traversal; Route A remains NOT GO until proven
Mission Completion Gate Contract Decision record for mission completion gate invariants and acceptance flow

| Lost-Work Tasks Incident (2026-05-23) | Incident catalog of 9 lost-work tasks from no-op finalize and reuse-handoff bugs | | GitLab Parity Inventory (FN-7421) | Implementation map for first-class GitLab support: import, linked issue tracking, comments, auth/settings UI, CLI/extension, and Command Center surfaces to mirror or explicitly exclude | | PostgreSQL Runtime Cutover Review (2026-07-14) | Current end-to-end authority inventory, intentional legacy SQLite readers, deployment contract, and verification record | | SQLite → PostgreSQL Migration Review (2026-06-26, historical) | Historical multi-agent review of the incomplete migration branch and its original findings | | Dashboard Theme & UI Plugin System Proposal (2026-07-01) | Feasibility-spike proposal for a controlled dashboard theme/UI shell extension point sharing one backend source of truth | | Full-loop Agent Tool-Surface Audit and Delivery Plan | Source-grounded audit of engine-agent and dashboard chat tool factories, gap analysis for mission hierarchy integration, and delivery plan (FN-8280) | | Dashboard Modal Inventory | Canonical classification of all 45 dashboard modal surfaces (classes A–D) with file:line evidence, FloatingWindow migration targets, and the shared migration contract (FN-8605 → FN-8617) |

External Resources

Suggested Reading Paths

  • New user: Getting Started → Dashboard Guide → Task Management
  • Workflow author: Dashboard Guide → Workflow Editor → Workflow Steps → Settings Reference
  • Power user / automation owner: Settings Reference → Workflow Steps → Agents → Planner Oversight (Settings Reference § Workflow Settings)
  • Maintainer / contributor: Architecture → Multi-Project → Contributing