Agent field guideCoding harness
Claude Code
shipAnthropic · stable · proprietary
Anthropic terminal coding harness: edits, runs tests, and uses git inside the repo.
Visit docs.anthropic.com →Open in NoemiumCatalog cardSource verified 2026-08-26
ledger entry · observed by @whysanesanders
Strong agentic coding in the repo. The bill climbs on a big tree, and it rewrites with more confidence than the diff always earns.
layer
Coding harness
maturity
stable
deployment
local · hybrid
evidence
Source verified
Install
Best for
- Terminal-native agents on a Claude seat you already pay for
- Multi-file refactors you will still review before merge
Requirements
- A Claude Pro or Max seat, or an Anthropic API key
- A git repository the harness is allowed to edit
Real cost scenarios
Claude Pro seat
$17–$20/mo
Plan list price; Code shares the same usage pool as claude.ai chat.
Claude Max 5x
$100/mo
Max 5x list; extra usage bills at API rates after the pool.
Models and providers
Claude Pro / MaxAnthropic API
Channels and surfaces
interactive terminalheadless CLI
Security boundary
high privilegeRepo contents and tool results leave the machine toward Anthropic unless you use a private setup you control.
- Do not run unsupervised on secrets-bearing repos.
- Review large diffs; the harness is confident.
Known limitations
- Usage is shared with claude.ai chat on the same seat.
- No first-party GUI diff viewer.
- API-billed overflow on large repos escalates fast.
Typed evidence
- 1Availabilitydocs.anthropic.com/en/docs/claude-codechecked 2026-08-26
- 2Installdocs.anthropic.com/en/docs/claude-codechecked 2026-08-26
- 3Requirementsdocs.anthropic.com/en/docs/claude-codechecked 2026-08-26
- 4Pricingdocs.anthropic.com/en/docs/claude-codechecked 2026-08-26
- 5Security / threat modeldocs.anthropic.com/en/docs/claude-codechecked 2026-08-26