copperhead

# API keys are read from the environment only; never commit a real .env
# Copy this file to .env and fill in your keys (.env is gitignored)
#
# copperhead loads .env from the directory you run it in. A variable already set
# in your shell always wins over this file.
OPENAI_API_KEY=
ANTHROPIC_API_KEY=

# Optional: saved-login for the Claude Code provider (--model claude-code).
# Drives Claude Code via the Claude Agent SDK and reuses your saved login, so a
# Claude subscription runs copperhead with NO ANTHROPIC_API_KEY. Mint it with
# `claude setup-token` while logged into Claude Code. The Claude Agent SDK
# (`@anthropic-ai/claude-agent-sdk`) ships as an optional dependency, so a normal
# install includes it. copperhead never reads or logs this credential; the CLI
# owns authentication.
CLAUDE_CODE_OAUTH_TOKEN=

# Optional: default model. Overridden by --model, and it overrides the `model`
# field in .copperhead/config.json.
#
#   claude-code       Claude Code, saved login (no API key; uses the token above)
#   claude-code:<id>  the same, on a specific model id
#   claude            the Anthropic API provider on its default model
#   claude-<id>       any Anthropic API model id, passed through as-is
#   codex             local Codex CLI using its saved ChatGPT login (no API key)
#   codex:<id>        local Codex CLI with an explicit model id
#   gpt-5             the OpenAI provider on its default model
#   <anything>        sent to OpenAI as a model id, e.g. gpt-5-mini
#
# Routing is by prefix, matched top to bottom: "claude-code" is checked before
# the "claude" prefix (Anthropic API, needs ANTHROPIC_API_KEY); "codex" uses the
# local Codex CLI; everything else goes to OpenAI and needs OPENAI_API_KEY. A
# typo like "claud-sonnet-5" routes to OpenAI and fails there.
#
# Left blank, copperhead picks a provider from whichever key is present,
# preferring OPENAI_API_KEY if both are set.
COPPERHEAD_MODEL=

# Optional: path to the authenticated local Codex CLI. The default is `codex`
# on PATH. Only needed for non-standard installations.
COPPERHEAD_CODEX_PATH=

# Optional: cross-run memory via Synap (https://docs.maximem.ai). Left blank,
# copperhead runs exactly as before with no network calls to Synap.
#
# Set it and each run recalls relevant context from your earlier runs (on this
# board and others) into the system prompt, then records its outcome, decisions,
# and refusals back. In-repo docs and the KiCad files stay the source of truth;
# recalled memory is advisory context layered on top.
#
# Requires the optional @maximem/synap-js-sdk package AND a Python 3.11+ runtime
# on the host: the JS SDK drives a Python bridge as a subprocess. If either is
# missing, copperhead logs a line and continues without memory.
SYNAP_API_KEY=

# Optional memory scoping. SYNAP_USER_ID defaults to your `git config
# user.email`; SYNAP_CUSTOMER_ID defaults to "copperhead" and only matters on
# B2B Synap instances.
SYNAP_USER_ID=
SYNAP_CUSTOMER_ID=