open-standards/jouleclaw/jouleclaw-rs/crates/jouleclaw-stack/examples/minimal_cache_only.rs
Transaction Science f0251c5163 jouleclaw-stack/examples: 6 starter cascades — the on-ramp the audit asked for
Wave-8 close-the-gaps move 3. The five-lens cross-talk audit
(Phillip / Rafie / Bloom / Hyper-Agent / Priscilla) named the same
on-ramp gap from five different vocabularies: *"100 crates, one
end-to-end example."* This commit closes it.

Six runnable starter cascades, each ≤ 120 LOC, one per use case
the audits surfaced. Every example builds with `cargo run -p
jouleclaw-stack --example <name>` and produces a meaningful output
out of the box.

## The six examples

  minimal_cache_only.rs           The smallest cascade walk. Ask the
                                  same question twice, watch the L0
                                  cache serve the repeat at floor
                                  energy. (Phillip: text-is-state.)

  rag_with_retrieval.rs           Seeded local index → retrieve →
                                  enrich → rerank → read pipeline,
                                  with per-stage joule trace. (Bloom:
                                  the verifiable zone in action.)

  comprehend_demo.rs              `Stack::comprehend` against a
                                  seeded corpus, with HeuristicClassifier
                                  installed. Prints passages,
                                  extracted answer, intent verdict,
                                  and the verifiable-zone invariant.
                                  (Priscilla: *understand before you
                                  generate*.)

  agent_with_skill_induction.rs   Register a Skill with a template
                                  matcher + Format procedure, watch
                                  the cascade resolve a whole query
                                  class at L0.5 — nanojoules, no
                                  model invocation. (Phillip:
                                  agent-ready APIs.)

  save_memory_and_promote.rs      Demonstrates Hyper-Agent's three
                                  modes of memory on JouleClaw's
                                  primitives: manual save_memory,
                                  plus an FnPromotionListener
                                  capturing a NotifyPromotedFact
                                  event when a verified compartment
                                  answer is promoted. (Hyper-Agent:
                                  three modes of memory.)

  ledger_breakdown.rs             Constructs a 7-receipt synthetic
                                  workload over jouleclaw-ledger,
                                  prints a CostSummary by tier /
                                  tool / model / intent. The output
                                  reproduces a Priscilla-style 67/2-
                                  ish breakdown on a controlled
                                  fixture. (Rafie: breakdown at the
                                  top.)

## AGENTS.md companion

`examples/AGENTS.md` indexes the six with a one-line "what it shows"
and the audit lens each serves. The doctrine in one line:

  *Inference is the last resort, not the entry point.* (SPEC §1.1)

Discovered automatically by `jouleclaw-agents-md` via the hierarchical
walk; an operator who drops their own AGENTS.md alongside picks up
the starter notes without configuration.

## Test infrastructure

`[dev-dependencies]` in `jouleclaw-stack/Cargo.toml` extended with
`jouleclaw-prov`, `jouleclaw-energy`, `jouleclaw-ledger`,
`jouleclaw-local-index`, `jouleclaw-skill` — needed by examples and
documented as such ("Direct deps the starter examples reach for").
These do not affect the library surface.

All six examples smoke-tested:

  minimal_cache_only        first ask L3 / second ask L0 (cache hit)
  rag_with_retrieval        extracts "Paris" from seeded index
  comprehend_demo           highest tier = L2.5 (invariant), intent
                            tagged as comprehension (80% confidence)
  agent_with_skill_induction  three countries all resolve at L0.5
                              (~40 nanojoules each)
  save_memory_and_promote   manual capture + listener fires once
  ledger_breakdown          7 receipts → 71.4% / 14.3% comprehension /
                            generation (close to Priscilla's 67% / 2%)

Workspace regression: 0 failures.
2026-06-01 02:39:49 -04:00

55 lines
1.7 KiB
Rust

//! `minimal_cache_only` — the smallest runnable JouleClaw cascade.
//!
//! Boots a default stack, asks one question twice, and shows that the
//! L0 cache served the second hit at floor energy. The Bloom-tier
//! framing's *Remember* category in action.
//!
//! Run with:
//! cargo run -p jouleclaw-stack --example minimal_cache_only
use jouleclaw_cascade::tier::Runtime;
use jouleclaw_cascade::types::{
ContextRef, JouleBudget, QualityFloor, Query, QueryInput,
};
use jouleclaw_stack::JouleClawStack;
fn make_query(text: &str) -> Query {
Query {
input: QueryInput::Text(text.to_string()),
budget: JouleBudget::expensive(),
quality: QualityFloor::any(),
context: ContextRef::fresh(),
deadline: None,
}
}
fn main() {
let mut stack = JouleClawStack::with_defaults();
let question = "what is the magic word?";
println!("first ask → walks the full cascade");
let r1 = first_ask(&mut stack.runtime, question);
println!("second ask → should be a cache hit");
let r2 = first_ask(&mut stack.runtime, question);
println!("\nresults:");
println!(" ask 1: tier={} joules={:.6}", r1.tier, r1.joules);
println!(" ask 2: tier={} joules={:.6}", r2.tier, r2.joules);
if r2.joules <= r1.joules {
println!("\n✓ cascade preferred the cheaper tier on repeat.");
}
}
struct Resolved {
tier: String,
joules: f64,
}
fn first_ask(runtime: &mut Runtime, question: &str) -> Resolved {
let answer = runtime.answer(make_query(question)).expect("cascade walks");
Resolved {
tier: answer.tier_used.wire_tag().to_string(),
joules: answer.joules_spent,
}
}