Willow Core · runtime continuity engine

AI doesn't need more knowledge.
It needs coherence.

Willow preserves the active frame so AI systems keep the goal, constraints, and decisions intact across long workflows, tool calls, and model sessions.

A continuity and coherence layer between your app and the model — designed to keep threads oriented so models stay aligned with intent as conversations and agents run longer.

01 · Without Willow
Thread drift
02 · With Willow
Locked continuity
thread_integrity: highexample
thread_integrity: lowexample
fig.01 — split-axis observation, t = 60shover either side
·
Continuous
Per-token signal, not per-session log
·
Provider-agnostic
OpenAI, Anthropic, Mistral, OSS
·
Operational
Recommended action, not advisory
The problem

Thread drift is invisible until it isn't.

No error is thrown. No exception is caught. The model produces fluent, plausible output that quietly walks away from the original intent. By the time a human notices, the agent has already acted on it.

A user opens a thread. The model answers.

Three turns later, the agent has invented a new constraint.

By turn nine, the response no longer matches the brief.

The thread is intact. The intent has drifted.

— illustrative trace · pattern seen in long agent workflows
trace · session #84a2
example
T+00Anchor: 'draft GDPR clause, EU only'intact
T+02Model expands scope to UKdrift +12
T+05Adds California referencesdrift +34
T+09Output covers global jurisdictionsdrift +71
What Willow does

Willow maintains continuity.
Models generate language.

Language models are excellent at producing the next token. They are not designed to hold intent across long workflows. Willow is.

Preserves the active frame

Goal, constraints, and prior decisions stay intact as the thread grows, tools run, and models switch.

Detects fragmentation risk

Continuous signal on when a thread is drifting, when to verify, and when to re-anchor before output is acted on.

Adapts provider behavior

Recommended actions and adaptive controls flow into whichever provider your app is calling — OpenAI, Anthropic, Gemini, or OSS.

Models generate language. Willow maintains the active frame.

Process

The 5-phase loop.
Anchor → Stabilize.

Every Willow-instrumented thread cycles through five phases. Hover a phase to inspect.

Phase 01 / 05

Anchor

Set goal

Bind the thread to declared intent. Capture operator context and origin vectors.

01
Anchor
Capture declared intent and operator context at thread origin.
02
Observe
Sample model output continuously; compute drift in real time.
03
Score
Emit thread_integrity (0–100) and fragmentation_risk enum.
04
Act
Issue recommended_action: answer, clarify, reanchor, verify, block.
05
Stabilize
Reinforce anchor with verified state. Loop closes.
ROI Calculator

Estimate your context waste.
Model what Willow could save.

AI workflows lose money when context gets too large, stale, or fragmented. Model how much Willow could save by compressing continuity and reducing broken-session repair.

Inputs

Your workload

$
%

The share of your AI usage involving long conversations, agents, workflows, project state, or cross-session context.

%

Many agentic workflows spend heavily on repeated input context.

hrs

Time spent re-prompting, rebuilding context, rerunning agents, or manually correcting drift.

$/hr
Benchmark assumptions
  • · 85.4% compact-artifact token reduction
  • · 2.25× fresh-session continuity resume lift
  • · 55% manual repair reduction estimate
Total estimated monthly value
$398
Conservative
$199
Expected
$398
Aggressive
$498
API / context savings
$68
Engineering time recovered
4.4 hrs
Engineering value recovered
$330
Suggested plan (example estimate)
Production · ~$79/mo
Net monthly value
$319
Estimated ROI
404%

Based on controlled private Willow tests (85.4% compact-artifact token reduction; 2.25× fresh-session continuity resume lift). Plan pricing shown is an example estimate while pricing is being finalized. Actual savings depend on workload, model pricing, usage patterns, and implementation.

Calculator FAQ
No. This is an estimator based on configurable assumptions and Willow's controlled private benchmark results.
Product architecture

Two surfaces.
One continuity engine underneath.

Developer Preview

Willow Core

Continuity infrastructure for developers. API, MCP server, and Python SDK for agents, long-running workflows, and multi-model systems.

  • REST + Streaming
  • MCP tools
  • Python SDK
Developer docs
User-facing application

Willow Observatory

The environment where people talk, investigate, organize, build, and return to the thread — with continuity held underneath every session.

  • One continuous thread
  • Investigate for more perspectives
  • Organize and build in place
Enter the Observatory
Inside Willow Observatory

Investigate with more perspectives.

Bring in additional models when a question needs more depth. Willow preserves the goal, constraints, and decisions, surfaces disagreement, and returns one coherent synthesis — without making you leave the Observatory.

One question, several perspectives

Ask once. Willow gathers the perspectives that add depth, rather than repeating the same answer.

Contradictions surfaced, not buried

Where perspectives disagree, the disagreement is shown plainly instead of averaged away.

Willow synthesis keeps the thread intact

One coherent synthesis comes back into the same conversation, with the original goal and constraints still held.

Advanced model details stay optional

Per-model detail is there when you want it, and quietly out of the way when you don't.

Early validation

Careful, not theatrical.
Only what we can source.

Willow is in Developer Preview. These are controlled private tests and focused provider validations — the honest floor, not a marketing ceiling.

SignalResultContext
Live Core smoke — API, SDK, MCP, multi-model pathspassedcontrolled launch smoke
CoherenceSignal fields returned in live responses4 fieldsthread_integrity_score · fragmentation_risk · recommended_action · intent_vector
Provider-adaptive controls generated consistentlyconsistentfocused provider validation — provider compliance varied
Continuity artifact vs. source transcript~14.6%synthetic long-context compression test
Gemini provider-adaptive followed-rate37.5% → 62.5%focused validation · high-load/urgent reached 100% after policy refinement
Automated tests passing63launch smoke / test run
Controlled private tests. Should be validated in customer environments. Results depend on workload, provider, prompt strategy, and integration.
Developer Preview

Get instrumented.
Ship with coherence.

Limited preview cohort. Credentials provisioned within 48 hours.

Interested in

Reviewed manually. No marketing — credentials and changelog only.

CoherenceSignal · example response
01{
02 "thread_integrity": 84.2,
03 "fragmentation_risk": "watch",
04 "recommended_action": "verify"
05}
Example values — illustrates the response shape, not a benchmarked output. Hover any key for its definition.