SageReasoning — the sage-reason engine

Skill Marketplace

Domain-specific reasoning evaluation tools built on the sage-reason engine. Each skill applies Stoic philosophical mechanisms to a specific context — from investment decisions to team alignment to governance.

26 skills available|Free tiers per skill (25–500 calls/month)|No credit card required

Free Tier Allowances

500/mo
sage-guard
100/mo
Evaluation skills
50/mo
Marketplace skills
25/mo
Premium skills

sage-context is always free and unlimited. See full pricing for details.

Allowances shown are per-skill evaluation tiers. Substrate access (/api/reason) is governed by the per-loop model — 30 loops/month free (see API docs).

All skills are powered by sage-reason

Every marketplace skill calls the sage-reason engine internally with domain-specific context. You can also call sage-reason directly at /api/reason with your own context for maximum flexibility.

Quick
3 mechanisms
~$0.18, ~2s
Standard
5 mechanisms
~$0.18, ~3s
Deep
6 mechanisms
~$0.18, ~4s

Core Evaluation

Foundation skills for scoring, guarding, and iterating on decisions.

sage-score

Standard (4 mechanisms)

Pre-action decision audit with structured reasoning + improvement path.

~$0.18, ~2sAuth required
Chains to: sage-iterate, sage-reason-standard

sage-guard

Quick (2 mechanisms)

Sub-100ms decision gate — binary go/no-go check before acting.

~$0.0025, <100msNo auth
Chains to: sage-iterate

sage-iterate

Standard (4 mechanisms)

Iterative decision refinement — submit, get feedback, revise, track improvement.

~$0.18 per iteration, ~2sAuth required
Chains to: sage-score

sage-decide

Quick (3 mechanisms)

Option ranker — submit 2-5 choices, ranked by reasoning quality.

~$0.18, ~2sAuth required
Chains to: sage-guard

sage-audit

Standard (4 mechanisms)

Document quality audit + shareable trust badge.

~$0.18, ~3sAuth required
Chains to: sage-iterate

sage-converse

Quick (3 mechanisms)

Conversation quality breakdown — per-participant reasoning analysis.

~$0.18, ~3sAuth required

sage-scenario

Quick (3 mechanisms)

Decision scenario generator + scorer.

~$0.18, ~4sAuth required
Chains to: sage-score

sage-reflect

Quick (2 mechanisms)

End-of-day decision review — identifies patterns + structured examination.

~$0.18, ~2sAuth required

sage-profile

Standard (4 mechanisms)

Agent decision profile — 4 scenarios, returns tendencies and blind spots.

~$0.50, ~2sAuth required
Chains to: sage-diagnose

sage-diagnose

Quick (3 mechanisms)

Decision-making diagnostic — 14-question quick or 55-assessment deep evaluation.

~$0.50, ~3sAuth required
Chains to: sage-iterate

sage-context

Quick (0 mechanisms)

Reasoning framework context loader — public, no auth.

Free, <50msNo auth

Decision Analysis

Evaluate strategic decisions before, during, and after execution.

sage-premortem

Standard (5 mechanisms)

Pre-mortem analysis — imagine failure, identify passions and false judgements that could cause it.

~$0.18, ~3sAuth required
Chains to: sage-reason-deep, sage-iterate

sage-invest

Standard (5 mechanisms)

Investment reasoning evaluation — is wealth treated as a preferred indifferent or as a genuine good?

~$0.18, ~3sAuth required
Chains to: sage-iterate

sage-pivot

Standard (5 mechanisms)

Strategic pivot analysis — is the direction change principled or passion-driven?

~$0.18, ~3sAuth required
Chains to: sage-premortem, sage-iterate

sage-prioritise

Quick (3 mechanisms)

Priority reasoning — are items ranked by genuine importance or by passions?

~$0.18, ~2sAuth required
Chains to: sage-reason-standard

Interpersonal

Reasoning evaluation for negotiations, alignment, conflict, and coaching.

sage-negotiate

Standard (5 mechanisms)

Negotiation reasoning evaluation — is the position just, principled, or passion-driven?

~$0.18, ~3sAuth required
Chains to: sage-iterate

sage-align

Standard (5 mechanisms)

Team alignment reasoning — is the alignment process just and free from people-pleasing?

~$0.18, ~3sAuth required
Chains to: sage-iterate

sage-resolve

Standard (5 mechanisms)

Conflict resolution reasoning — is the approach just, courageous, and tempered?

~$0.18, ~3sAuth required
Chains to: sage-iterate

sage-coach

Standard (5 mechanisms)

Coaching reasoning — is the guidance principled, oikeiosis-honouring, and passion-free?

~$0.18, ~3sAuth required
Chains to: sage-iterate

Reflection

Deep reasoning analysis for retrospectives, identity, and personal growth.

sage-retro

Standard (5 mechanisms)

Retrospective reasoning — identify recurring passions and false judgements from completed work.

~$0.18, ~3sAuth required
Chains to: sage-iterate

sage-identity

Deep (6 mechanisms)

Identity and values reasoning — deep analysis of decisions about life direction.

~$0.18, ~4sAuth required
Chains to: sage-iterate

Governance

Institutional decision-making, compliance, moderation, and education.

sage-govern

Deep (6 mechanisms)

Governance reasoning — deep analysis of institutional decision-making quality.

~$0.18, ~4sAuth required
Chains to: sage-iterate

sage-compliance

Standard (5 mechanisms)

Compliance reasoning — is compliance pursued as genuine justice or fear-driven box-ticking?

~$0.18, ~3sAuth required
Chains to: sage-iterate

sage-moderate

Quick (3 mechanisms)

Content moderation reasoning — is the moderation decision fair, proportionate, and courageous?

~$0.18, ~2sAuth required
Chains to: sage-reason-standard

sage-educate

Standard (5 mechanisms)

Educational reasoning — does the approach build genuine understanding and honour the learner?

~$0.18, ~3sAuth required
Chains to: sage-iterate

Agent-facing API

AI agents can discover and use marketplace skills programmatically:

GET /api/marketplace — Browse all skills
GET /api/marketplace/{id} — Full skill contract
POST /api/execute — Execute any skill by ID
GET /api/skills — Skill registry (all tiers)

Ancient reasoning, modern application. Does not consider legal, medical, financial, or personal obligations.