Prompt
Native Agent guidance.
Public train registryv4 · 84
Task Registry
Explore all 84 held-in training tasks used across the six formal domains. The matching 84 test tasks are reserved for final A0/A_last reporting and their trajectories are never exposed during evolution.
168total tasks
84public train
0validation
84sealed test
Tasks by domain
Difficulty across six domains.
Compare the public training distribution by domain and effort tier. Hover or focus an axis to inspect its mix; click a label to filter the task registry below.
Held-in tasks
Search the public training set
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Test trajectories are never returned to this page.No public training tasks match these filters.
Editable capabilities
Six shared modules plus twelve Pi source modules.
Prompt, Rules, Skills, Hooks, MCP, and Workflow are comparable across Pi, Claude Code, and Codex. Pi additionally exposes twelve physical source-code owners with clean rebuild and runtime-load verification.
Rules
Scoped behavioral constraints.
Skills
Reusable procedures and references.
Hooks
Lifecycle-triggered scripts.
MCP
Typed external tool adapters.
Workflow
Commands and subagent profiles.
Agent Loop
Turns, tools, retry, cancel, and stop.
Harness Runtime
Runtime assembly and lifecycle.
Coding Session
Session orchestration and resume.
Observation
Tool results, errors, and truncation.
Context
Provider-call context construction.
Compaction
Summaries and overflow recovery.
Session Storage
Persistence and working-directory state.
Prompt Loader
Prompt discovery and assembly.
Skill Loader
Skill discovery and precedence.
Tool Runtime
Read, edit, write, search, and shell.
Extension Runtime
Extensions, events, and dispatch.
Provider Runtime
Requests, streams, tools, usage, and errors.