quickthink

quickthink is a local-first CLI and Python library that wraps Ollama-backed LLM calls with a compressed plan-then-answer scaffold and latency-aware routing. It adds a short, validated planning step before the answer for prompts that look multi-step, and routes simple prompts straight through to the model.

It currently ships as a lightweight scaffolding layer for local LLMs with three modes:

• lite (default): one-pass inline plan prefix + answer in a single generation
• two_pass: separate plan call then answer call
• direct: no planning pass, raw prompt to model

The plan can be logged as metadata while hidden from normal UI output.

Part of the Hermes Labs reliability stack. quickthink shapes the inference call; sibling tools cover other layers — for example, LintLang statically lints agent-config files, which is complementary to (not a substitute for) quickthink's runtime planning scaffold.

Where it fits

quickthink is useful when you need:

• local LLM routing for local-first inference pipelines
• small model optimization for constrained hardware and low-latency workflows
• latency-aware inference via routing, bypass, and planning-budget controls
• structured output reliability through strict planning grammar and eval gates
• Ollama middleware for practical local deployment
• agent runtime compatibility for CLI and automation-driven execution contexts

What this is / what this is not

What this is:

• A local middleware layer for Ollama-backed LLM calls.
• A small CLI for planned-answer generation, routing diagnostics, and local benchmarking.
• A canonical eval harness for reproducible project-level quality checks.

What this is not:

• Not a hosted API service.
• Not a model training framework.
• Not a replacement for full agent orchestration platforms.

Why

Small/local models are fast but often underperform on multi-step tasks. quickthink adds a strict planning pass (6-16 keyword tokens by default) to improve response quality without full verbose reasoning traces.

Features

• Ollama-first integration
• Model profiles: qwen2.5:1.5b, mistral:7b, gemma3:27b
• Three execution modes: lite (default), two_pass, direct
• Preset routing profiles: fast, balanced, strict
• Lane policy: default or strict_safe (routes strict-format tasks to direct path)
• Hidden plan by default, optional plan display/logging
• Bypass mode for short prompts (latency control)
• Adaptive routing (skip, 12-token, max-token planning lanes)
• Strict plan grammar: g:<...>;c:<...>;s:<...>;r:<...>
• Local eval UI server (quickthink ui) at http://127.0.0.1:7860
• Canonical eval harness: run → judge → validate → report

5-minute quickstart

Prerequisite: install and start Ollama locally.

# 1) Install the released package
python -m pip install "quickthink==0.2.1"

# 2) Pull one supported model
ollama pull qwen2.5:1.5b

# 3) Run your first command
quickthink ask "Give me a 3-step plan to learn SQL basics" --model qwen2.5:1.5b

If this command works, your local setup is ready.

For development, clone the repository and install the editable development extras:

git clone https://github.com/hermes-labs-ai/quickthink.git
cd quickthink
python -m pip install -e '.[dev]'

Documentation Map

• Docs index: docs/README.md
• First-time setup: docs/GETTING_STARTED.md
• Common failures and fixes: docs/TROUBLESHOOTING.md
• Known limitations: docs/KNOWN_LIMITATIONS.md
• Quick demo script: docs/demo/QUICK_DEMO.md
• OSS readiness scorecard: docs/release/OSS_READINESS_SCORECARD_2026-02-25.md
• OSS standards alignment (with external references): docs/release/OSS_STANDARDS_ALIGNMENT_2026.md
• Agent operating notes: AGENTS.md

Repository Layout

src/quickthink/         Runtime package (CLI, engine, prompts, routing, UI server)
scripts/eval_harness/   Canonical evaluation pipeline (run/judge/validate/report)
scripts/evals/          Legacy smoke/demo helpers (non-canonical)
scripts/demo/           One-command local demo runner
docs/evals/             Prompt sets, rubrics, harness specs, deployment gate notes
docs/release/           Release process and repository audit notes
tests/                  Unit tests for runtime and harness safety checks

See full architecture + publishability audit: docs/release/REPO_STRUCTURE_AND_PUBLISHABILITY_AUDIT_2026-02-20.md.

Canonical vs Legacy Scripts

Canonical project workflows:

• scripts/eval_harness/*: maintained evaluation pipeline for run/judge/validate/report.
• scripts/demo/quickstart.sh: canonical end-to-end local smoke/demo flow.

Legacy helpers (kept for compatibility and ad-hoc smoke checks):

• scripts/evals/*: non-canonical helpers; do not treat as release gate source of truth.

When in doubt, use scripts/eval_harness/* and scripts/demo/quickstart.sh.

Usage

List supported profiles:

quickthink list-models

List preset routing profiles:

quickthink list-presets

Show officially supported compatibility models:

quickthink compatibility

Ask with compressed planning:

quickthink ask "How would a cow round up a border collie?" --model qwen2.5:1.5b --preset balanced

Show plan in terminal:

quickthink ask "How would a cow round up a border collie?" --model mistral:7b --show-plan

Switch to two-pass mode:

quickthink ask "How would a cow round up a border collie?" --mode two_pass --show-route --show-plan

Show routing diagnostics:

quickthink ask "Design a robust parser with tradeoffs and a JSON output schema" --show-route --show-plan

Optional continuity hint (tiny, off by default):

quickthink ask "Continue the previous structure" --continuity-hint "ctx:prior_goal,format_json"

Strict-format-safe lane policy (routes strict format tasks to direct path first):

quickthink ask "json only: {\"ok\":true,\"why\":\"short\"}" --lane-policy strict_safe --show-route

Benchmark with strict-safe lane policy:

quickthink bench "Answer with YES or NO only: Is 2+2=4?" --lane-policy strict_safe --runs 3

Log plan + metrics as JSONL metadata:

quickthink ask "Design a tiny retry strategy" --log-file ./logs/quickthink.jsonl

Benchmark all three modes (lite, two_pass, direct):

quickthink bench "Design a robust parser for CSV with malformed quotes" --model qwen2.5:1.5b --runs 3

One-Command Quickstart Demo

Run full local demo setup and artifact generation:

bash scripts/demo/quickstart.sh

It does:

• Python env + package install
• ollama pull for supported models
• Sample A/B/C eval run
• Result validation
• Markdown/HTML report generation
• Compatibility snapshot update

For a one-minute terminal walkthrough command set, see docs/demo/QUICK_DEMO.md.

Optional environment flags:

• QUICKTHINK_PRESET=fast|balanced|strict
• QUICKTHINK_LIMIT=<n> (number of prompts from canonical set)
• QUICKTHINK_RUNS=<n>
• QUICKTHINK_RUN_JUDGE=1 (switch judge backend from rule to ollama)
• QUICKTHINK_JUDGE_MODEL=<model>

Troubleshooting

For common setup/runtime failures and fixes, see docs/TROUBLESHOOTING.md.

Reports

Canonical report flow:

python3 scripts/eval_harness/run_suite.py \
  --prompt-set docs/evals/prompt_set.jsonl \
  --out docs/evals/results/run-<timestamp>.jsonl \
  --manifest-out docs/evals/results/manifest-<timestamp>.json \
  --runs 3

python3 scripts/eval_harness/judge_suite.py \
  --prompt-set docs/evals/prompt_set.jsonl \
  --results docs/evals/results/run-<timestamp>.jsonl \
  --out docs/evals/results/judged-<timestamp>.jsonl \
  --backend rule

python3 scripts/eval_harness/validate_judged_results.py \
  --path docs/evals/results/judged-<timestamp>.jsonl

python3 scripts/eval_harness/report_suite.py \
  --runs docs/evals/results/run-<timestamp>.jsonl \
  --judged docs/evals/results/judged-<timestamp>.jsonl \
  --out-json docs/evals/results/report-<timestamp>.json \
  --out-md docs/evals/results/report-<timestamp>.md \
  --out-html docs/evals/results/report-<timestamp>.html

Legacy helpers in scripts/evals/* remain available for smoke/demo use only.

Compatibility Matrix

• Supported models are fixed to:
  • qwen2.5:1.5b
  • mistral:7b
  • gemma3:27b
• Experimental evaluations may include additional models (for example llama3.2:latest) in deployment-gate or variant-gate workflows. Treat those as research lanes unless promoted into SUPPORTED_MODELS in runtime config.
• Regenerate matrix + snapshot with:

python3 scripts/evals/compat_matrix_snapshot.py

Launch local web UI (for eval/scaffolding testing):

quickthink ui

Then open http://127.0.0.1:7860 if it does not open automatically.

UI lane control:

• Lane policy dropdown supports default and strict_safe for single-prompt runs and 3-mode comparisons.

UI eval safety gates:

• Preflight is required before any eval run (validate_prompt_set.py must return status=OK).
• Run-file ingestion is blocked unless validate_results.py returns status=OK.
• UI displays validator output and dataset SHA256 for reproducible/comparable runs.

Public Repo Scope

Included in this public repository:

• runtime source code (src/quickthink)
• reusable evaluation harness (scripts/eval_harness, docs/evals prompt/spec files)
• tests and release process notes

Excluded from public tracking:

• internal multi-agent comms logs
• generated eval result dumps and ad-hoc local traces
• private experiment workspaces under experiments-local/

Branching

• Keep version tracks isolated in codex/* branches.
• Merge to main only after benchmarks and notes are updated.
• See docs/VERSION_NOTES.md for version-to-version differences.

Maintainer Commands

Install (editable + dev):

python -m venv .venv
source .venv/bin/activate
pip install -e '.[dev]'

Test:

PYTHONPATH=src .venv/bin/pytest -q

Lint (basic syntax/import sanity):

python -m compileall src tests scripts

Release docs + checklist:

make release-check VERSION=x.y.z

Follow:

• docs/release/RELEASE_CHECKLIST.md
• docs/release/RELEASE_PROCESS.md
• docs/release/SUPPLY_CHAIN_BASELINE_2026.md

Limitations / What it does not do

Grounded in how the code actually behaves:

• It does not improve every answer. Whether the planning scaffold helps is model- and task-dependent; run the eval harness before claiming improvements.
• It does not add an LLM of its own. The routing, plan grammar, and validation/repair logic are plain Python; the answer (and, in two_pass mode, the plan) still come from your Ollama model, so two_pass adds one extra model call versus direct.
• It does not verify correctness. When a generated plan fails the grammar check, the engine substitutes a fixed fallback plan (g:solve;c:constraints;s:direct_reasoning;r:verify_output); this keeps the format valid but does not make the answer correct.
• It only targets the three pinned models in SUPPORTED_MODELS (qwen2.5:1.5b, mistral:7b, gemma3:27b). Other models may run but are untuned.
• It is local-first only: it talks to a local Ollama HTTP endpoint and is not a hosted API, a training framework, or an agent-orchestration platform.
• Hidden planning is still logged for transparency; keep --log-file output auditable if you rely on the plan.

License

Apache-2.0

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About Hermes Labs

Hermes Labs is an AI reliability engineering studio for product and engineering teams shipping production agents and LLM applications. We find the structural AI failures standard evals miss, then harden retrieval, memory, agents, and the language layers around production AI systems with runtime controls and defensible evidence.

Browse the open-source catalog or contact roli@hermes-labs.ai.