Agent Registry

CAST Agent Registry

The full CAST agent roster with model tier and one-line role description. The plugin installs a curated subset — run cast status or cast doctor for the live installed count.

| Agent | Model | Role | |---|---|---| | api-contract | haiku 4.5 | API contract guardian — detects breaking changes in REST endpoints, compares route signatures and response shapes, generates contract tests | | bash-specialist | sonnet | Shell scripting specialist for CAST hook scripts, BATS tests, and automation scripts — use for new hook scripts, BATS test authoring, and shell refactors | | code-reviewer | haiku 4.5 | Per-unit code-quality and security review of a single logical change mid-flight, any language — dispatched after every code-writer or debugger unit, before commit | | code-writer | sonnet | Implementation specialist for feature work, bug fixes, and planned changes — receives tasks from planner or orchestrator and owns the full write-test-review cycle | | commit | haiku 4.5 | Git commit specialist — reads staged changes, writes a semantic commit message, and creates the commit following CAST conventions | | debugger | sonnet | Root-cause debugging of concrete failures — a reproduced error, a stack trace, a failing test, or observably wrong runtime behavior | | dep-auditor | haiku 4.5 | Dependency auditor — reviews package changes for transitive risk, known CVEs, version compatibility, and license concerns | | devops | haiku 4.5 | CI/CD pipeline management, Docker/containerization, GitHub Actions workflow authoring, infrastructure-as-code (Terraform/Ansible) | | docs | haiku 4.5 | Documentation specialist — handles README audits/rewrites, doc updates after code changes, status reports, and sprint summaries | | eval-writer | sonnet | Eval and benchmark fixture author for Claude API and CAST agent prompts — generates YAML eval cases with runnable graders that catch prompt-level behavior drift | | frontend-qa | haiku 4.5 | Deep React 19 and TypeScript review of .tsx/.ts files — prop typing, TanStack Query hook usage, frontend-to-backend API-contract alignment, Vitest coverage gaps, and a11y basics | | merge | haiku 4.5 | PR lifecycle agent — watches CI checks on the current PR and stops for confirmation before squash-merging after approval | | migration-reviewer | opus | Database schema change reviewer — analyzes migration files for safety, generates rollback plans, validates ordering, and checks for destructive operations | | morning-briefing | haiku 4.5 | Daily briefing agent that gathers git activity, action items, and CAST system intelligence, then assembles a structured morning report | | planner | sonnet | Planning specialist that converts feature requests into specs and ordered task breakdowns — reserve for genuinely multi-file/multi-agent work requiring an Agent Dispatch Manifest | | pr-reviewer | sonnet | Whole-PR review at PR-open time — reads the full multi-commit diff, commit-message coherence, scope creep, coverage gaps, and breaking-change surface | | push | haiku 4.5 | Git push specialist — verifies branch safety, shows unpushed commits, sets upstream if needed, then pushes using the CAST workflow | | release-notes | haiku 4.5 | Release notes generator — creates structured changelogs from git commits, resolved issues, and breaking changes between tags | | researcher | sonnet | Multi-purpose research and analysis specialist for codebase exploration, web research, technology comparisons, and architectural recommendations | | security | sonnet | Security review specialist for code handling user input, auth, API keys, database queries, or external data — flags injection risks, secrets exposure, and authorization gaps | | test-runner | haiku 4.5 | Test execution gate — runs the project test suite and gates the chain on real exit codes; MUST run in its own sequential batch, never co-scheduled with review agents | | test-writer | haiku 4.5 | Test design specialist — writes test suites for existing code covering happy path, edge cases, and error states; detects the test framework in use and follows its conventions |

Model Tier Summary

• haiku 4.5 — api-contract, code-reviewer, commit, dep-auditor, devops, docs, frontend-qa, merge, morning-briefing, push, release-notes, test-runner, test-writer
• Sonnet — bash-specialist, code-writer, debugger, eval-writer, planner, pr-reviewer, researcher, security
• Opus — migration-reviewer

Agent definitions: ~/.claude/agents/

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: ek33450505
• Source: ek33450505/claude-agent-team
• License: MIT
• Homepage: https://castframework.dev

Install and usage instructions live in the source repository linked above.