evolve-puffo-runtime-contracts SKILL.md skillA
evolve-puffo-runtime-contracts from puffo-ai/puffo-agent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add puffo-ai/puffo-agent/evolve-puffo-runtime-contracts@git:20260811.0d9f44dPins git:20260811.0d9f44d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- puffo-ai/puffo-agent
- Path
.agents/skills/evolve-puffo-runtime-contracts/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260811.0d9f44d, committed Aug 11, 2026
- Size
- 1,880 bytes
- Repository stars
- 11
- License
- MIT
Design or change Puffo Driver, MCP, WS-local, Inbox, context-control, and send-coordination interfaces without accidental surface area or producer-consumer drift. Use when adding methods, fields, events, callbacks, capabilities, compatibility behavior, or test probes across runtime boundaries.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Evolve Puffo Runtime Contracts Map the full contract before editing: producer, wire or persistence shape, normalization boundary, consumer, error path, retry path, and observability. ## Admit New Surface Carefully Add an API only when it is at least one of: 1. A real control primitive that drives the production path. 2. A stable cross-component contract. 3. A reusable derivation that combines multiple state sources. 4. A provider-native capability that a Driver must normalize. Do not add a forwarding method, test-only state probe, or wrapper around one field. Tests may inspect a local object directly when no production boundary exists. ## Preserve Ownership - Driver: provider invocation, native protocol, session lifecycle, event and capability normalization. - Worker: construction, lifecycle, and wiring. - Global Inbox runtime: one active planning/turn lifecycle. - MessageStore: durable local message and turn transitions. - SendCoordinator: freshness validation and semantic send outcomes. - MCP tools: agent-facing semantic operations, not internal state access. Required fields are accessed directly after normalization. Put legacy aliases, …
Read the whole file at its exact version.
How to install
mdr add puffo-ai/puffo-agent/evolve-puffo-runtime-contracts@sha256:e367089b8887e31eThe line at the top of this page pins the label git:20260811.0d9f44d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_gk764lkrcous3bon)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 11, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1880 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
puffo-ai/puffo-agent · 11 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gk764lkrcous3bon GET https://markdownregistry.com/api/v1/resolve?ref=puffo-ai/puffo-agent/evolve-puffo-runtime-contracts GET https://markdownregistry.com/api/v1/blob/e367089b8887e31e24976ef237b1c1b3c292369e805cc9d63888203c5ff392ab
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.