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Decision Workspace

grain-ai-agent-headless vs pi-coding-agent vs yoyo-agent

Side-by-side comparison of Rust crates

47
grain-ai-agent-headless
experimentalv0.0.1-beta2

Headless coding-agent toolkit built on grain-agent-core + grain-agent-harness + grain-llm-genai. v1 ships the four read-only filesystem tools and a single-prompt CLI driver (`grain-headless`); write tools / shell / interactive loop / rig-backed semantic search land in follow-up PRs.

46
pi-coding-agent
experimentalv1.0.0

Interactive coding agent CLI (Rust port of @earendil-works/pi-coding-agent). Streaming REPL, session persistence, AGENTS.md loader, slash commands, per-tool permissions. Install with `cargo install pi-coding-agent`; the binary is `pi`.

44
yoyo-agent
experimentalv0.1.11

A coding agent that evolves itself. Born as 200 lines of Rust, growing up in public.

Core Metrics

grain-ai-agent-headlesspi-coding-agentyoyo-agent
Health Score474644
Total Downloads2724152
30d Downloads000
Dependents200
Releases219
Last Updatedtoday13d ago12d ago
Age1d13d2m

Health Breakdown

grain-ai-agent-headless
Maintenance
14
Quality
11
Community
7
Popularity
2
Documentation
13
pi-coding-agent
Maintenance
12
Quality
14
Community
6
Popularity
2
Documentation
12
yoyo-agent
Maintenance
12
Quality
10
Community
6
Popularity
3
Documentation
13

Technical Details

grain-ai-agent-headlesspi-coding-agentyoyo-agent
Version0.0.1-beta21.0.00.1.11
Stable (≥1.0)✗ No✓ Yes✗ No
LicenseMITMITMIT
Dependencies301512
Crate Size143KB26KB1.3MB
Features400
Yanked %0.0%0.0%0.0%
Edition202420212021
MSRV—1.80—
Owners111

Links

grain-ai-agent-headless detail →GitHub ↗Docs ↗crates.io ↗
pi-coding-agent detail →GitHub ↗crates.io ↗
yoyo-agent detail →GitHub ↗Docs ↗crates.io ↗

Quick Verdict

  • •grain-ai-agent-headless leads with a health score of 47/100, but none of the options score above 80.
  • •yoyo-agent has the most downloads (152), suggesting wider adoption.
  • •grain-ai-agent-headless, yoyo-agent are pre-1.0 — API may change.