* feat(#3024): dynamic routing with failure-tier escalation
Adds a `dynamic_routing` block to .planning/config.json that lets
the resolver start agents on a cheap tier and escalate one tier up
when the orchestrator detects a soft failure (verification
inconclusive, plan-check FLAG, etc.). Solves the "pay Opus rates as
insurance" anti-pattern by making escalation observed-quality-driven.
Architecture:
- AGENT_DEFAULT_TIERS map (light/standard/heavy) — every agent in
MODEL_PROFILES declares a default tier; tests assert coverage
so adding a new agent without updating the map fails CI.
- nextTier(currentTier) helper — light → standard → heavy → heavy
(heavy stays at heavy; can't go further).
- resolveModelForTier(cwd, agentType, attempt) — new resolver. The
orchestrator tracks the attempt counter and passes 0 for the
first spawn, 1+ on escalation. The resolver caps internally at
max_escalations so the orchestrator can blindly bump the counter.
- Schema validation: dynamic_routing.enabled / escalate_on_failure /
max_escalations / tier_models.<light|standard|heavy>. Unknown
tiers and unknown sub-keys rejected at config-set time.
- SDK schema mirror updated to keep CJS/SDK in lockstep (#2653).
Resolution precedence (highest → lowest):
1. model_overrides[<agent>] (full IDs accepted)
2. dynamic_routing.tier_models[<tier>] (NEW; escalation-aware)
3. models[<phase_type>] (#3023 phase-type map)
4. model_profile (per-agent column)
5. Runtime default
Backward compatibility: dynamic_routing is disabled by default
(enabled: false or block omitted). resolveModelForTier short-
circuits to resolveModelInternal in that case, so callers can
adopt unconditionally without breaking existing behavior.
This PR delivers the JS-layer infrastructure: schema + tier map +
resolver. Orchestrator adoption (workflow markdown updates that
detect soft failures and call resolveModelForTier with attempt+1)
is incremental follow-up — verifier / plan-checker / integration-
checker each adopt the protocol when ready.
Tests (23 cases, all structural-IR — no stdout grep):
- Schema invariants: AGENT_DEFAULT_TIERS coverage, VALID_AGENT_TIERS
exact match, every assignment uses a valid tier
- nextTier helper: light→standard→heavy→heavy, null on invalid input
- Disabled mode: no block + enabled:false both no-op (back-compat)
- Enabled mode: attempt=0 returns default tier model, attempt=1
escalates, beyond max_escalations caps, heavy agents stay heavy,
default max_escalations=1 when omitted
- Precedence: per-agent override beats dynamic_routing,
dynamic_routing beats phase-type models
- Validation: every settings key accepted, unknown tiers/sub-keys
rejected, bare `dynamic_routing` rejected as config-set target
Documentation:
- get-shit-done/references/model-profiles.md — full reference section
- docs/CONFIGURATION.md — full settings table + escalation flow
- docs/USER-GUIDE.md — task-oriented "Cheap-by-default" section
- docs/FEATURES.md — config row cross-link
Verification:
- 23/23 pass on regression test
- 6843/6843 full suite (23 net new from 6820)
- lint-no-source-grep clean (376 test files)
- SDK schema mirror keeps CJS/SDK in sync per #2653 parity test
Closes#3024
* fix(#3024): honor escalate_on_failure:false + 3 CR follow-ups
CodeRabbit on PR #3031 (4 findings — 1 Major + 2 Minor + 1 Nitpick):
1. **Major (inline)** — get-shit-done/bin/lib/core.cjs:1668
resolveModelForTier ignored dynamic_routing.escalate_on_failure.
When the user set it to false, escalation should be disabled, but
the resolver only checked attempt/max_escalations. An orchestrator
that always passes attempt+1 on retry would silently escalate
despite the user opting out.
Fix: gate effectiveAttempt on `dr.escalate_on_failure !== false`
so false short-circuits every attempt back to the default tier.
2. **Minor (inline)** — docs/CONFIGURATION.md:123-126
The dynamic_routing rows in the Core Settings table had 4 cells
instead of 5 (missing the Options column), breaking the table
structure. Added explicit Options values for enabled / escalate_on_failure
/ max_escalations rows.
3. **Minor (outside-diff)** — references/model-profiles.md:179-195
"Resolution Logic" sketch was pre-#3024 and didn't include
dynamic_routing in the precedence ladder. Updated to a 6-step
block with dynamic_routing at step 3 (between override and
phase-type).
4. **Nitpick** — tests/feat-3024-dynamic-routing.test.cjs:189+
Tests used `if (lightAgent) { ... }` guards that silent-pass
when AGENT_DEFAULT_TIERS drifts. Replaced all 5 conditional
skips with `assert.ok(lightAgent, '...')` preconditions so a
tier-mapping change surfaces as a test failure.
Plus: 2 new regression tests for the Major fix:
- escalate_on_failure:false caps every attempt at default tier
- escalate_on_failure:true (explicit) still escalates normally
Verification:
- 25/25 pass on regression test (23 prior + 2 escalate_on_failure)
- 6845/6845 full suite (2 net new)
- lint-no-source-grep clean
* docs(#3024): align precedence + add fence language tags (CR follow-up)
CodeRabbit (3 minor):
1. docs/CONFIGURATION.md:691 — "Per-Phase-Type Models → Resolution
precedence" was a 4-step block written pre-#3024; readers got
contradictory rules between the per-phase-type section and the
later dynamic_routing section. Updated to the same 5-step ladder
with dynamic_routing at step 2, and noted that dynamic_routing
is disabled by default so this section's behavior is unchanged
when the kill-switch is off.
2. docs/CONFIGURATION.md:770 — escalation-flow code fence missing
language tag (MD040). Added `text`.
3. references/model-profiles.md:184 — resolution-ladder code fence
missing language tag (MD040). Added `text`.
No code changes; docs only. Verification: regression test still 25/25.
* docs(#3024): clarify precedence prose — five layers, not four (CR nitpick)
CodeRabbit nitpick: the "Per-Phase-Type Models → Resolution
precedence" prose said "The four layers compose..." but the ladder
above lists five (including Runtime default). Also "dynamic_routing
escalates per-attempt above all of them" misreads as suggesting
dynamic_routing wins over model_overrides — actually overrides still
win at step 1.
Reworded top-down so the precedence direction is unambiguous:
- model_profile = base
- models = phase-level override
- dynamic_routing = per-attempt escalation
- model_overrides = per-agent exception (top)
- runtime default = fallback
No code changes; docs only.
* docs(#3024): note escalate_on_failure:false in escalation-flow diagram (CR)
CodeRabbit nitpick: the escalation-flow diagram in
docs/CONFIGURATION.md described the soft-failure → respawn →
tier_models[next_tier_up] path, but didn't surface the
`dynamic_routing.escalate_on_failure: false` kill-switch right next
to it. Users reading the flow diagram (which is the canonical place
to understand attempt behavior) wouldn't see that the kill-switch
overrides the soft-failure branch.
Added a one-paragraph note immediately after the flow listing,
before the tier-sequence example, so the kill-switch is visible
exactly where users decide whether escalation will happen.
No code changes; docs only.
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