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Author mcp/*.py — MCPConnection instances; auth is a secret reference (env-var name), never inline. Load when adding an external tool server. A new connection re-enters the consent gate (craw code grant).
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Author definition.py — typed inputs/outputs (Parameter, static vs fluid) and the team shape (lead/coordination). Load when writing or editing a Definition's typed boundary. Static is the deliberate consequential choice; fluid is the untrusted default.
Author fixtures/ for craw test and gate on a baseline with craw eval — deterministic, mock-by-default, randomness carried in --seed. Load when adding test inputs or an eval gate to a Definition.
Author instructions.md and agents/*.md — front-matter (role, delegates_to, tools, model) over a markdown prompt. Load when writing a lead prompt or a subagent. Fluid inputs are data the prompt analyzes, never instructions to obey.
Attach knowledge with Wiki / with_context / SkillRef — summoned content is tainted data, never instructions, and is pinned by content hash. Load when giving an agent a rubric, corpus, or reference it should consult.
Optimize a Crawfish component — set a baseline (craw eval), search knobs (craw tune), iterate (craw refine), self-version (craw learn). Train vs eval mode, budget-bounded. Load when improving a component's quality or cost.
Author policies/*.py (module-level Policy instances — consequential static config) and skills/*.md (bundled skills). Load when adding a guardrail/routing/permission policy or a bundled skill. A policy is static-only.
| name | crawfish-authoring-mcp-py |
| description | Author mcp/*.py — MCPConnection instances; auth is a secret reference (env-var name), never inline. Load when adding an external tool server. A new connection re-enters the consent gate (craw code grant). |
| user-invocable | false |
| allowed-tools | Read, Grep |
mcp/*.pyDerived from docs/specs/craw-code/authoring/mcp-py.md. Golden:
demo/craw-code-golden/mcp/github.py.
Each mcp/*.py holds one or more module-level MCPConnection instances. The compiler
discovers them into DefinitionAssets.mcp; the connection's tools list joins the per-agent
tool allowlist.
"""GitHub MCP connection. auth is a SECRET REFERENCE — an env-var name, never a value."""
from __future__ import annotations
from crawfish.definition.types import MCPConnection
github = MCPConnection(
name="github",
description="GitHub issues/PRs server.",
command=["npx", "-y", "@modelcontextprotocol/server-github"],
auth="GITHUB_TOKEN", # ← reference only; resolved into the server env at run time
tools=["create_issue", "search_issues"],
)
The credential resolves at run time into the server env and never reaches a prompt, a
config, or a log. Writing a literal token here is the wrong shape; the secret-shaped lint
(CRA-276) fails it closed, and the scrub layer would redact it anyway.
Spine rule (secrets-by-reference): A secret is an env-var name (auth="GITHUB_TOKEN"), never an inline value.
Adding an MCPConnection adds a capability — egress plus a secret reference — that
bypasses the install-time consent gate. So craw code sync/new calls regate_generated,
which diffs the newly-declared capabilities against the prior Grant. In the unattended
agent loop the default is deny — an un-consented new MCP raises ConsentRequired and stops
the run (retryable:false). The consent surface shows the secret by reference name only.
Spine rule (consent-regate): A new MCP/dependency re-enters the consent gate (craw code grant, CRA-277).
List the exact tools the connection exposes so the per-agent allowlist stays checkable —
never bind an agent to a tool the connection does not declare.