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Kiro vs SLCR
Kiro focuses on an agentic IDE with spec-driven development, while SLCR provides a standalone requirement format and CLI.
KiroAgentic IDE with spec-driven development, from AWS
SLCRAn open standard for writing software requirementsWhich to pick
Pick Kiro if you want…
- Spec-driven development with AI agents
- Agentic IDE with spec-driven workflow
- Integrations with AWS IAM Identity Center (on Kiro's list, not SLCR's)
Pick SLCR if you want…
- Spec-driven development with AI agents
- A free, open-source tool
- Integrations with JSON, TOML or YAML (on SLCR's list, not Kiro's)
Side by side
- What it is
- Kiro:Kiro is an agentic IDE that turns prompts into specs, validates code, and runs parallel AI agents across large codebases.
- SLCR:SLCR is an open-standard format for sliceable, linked, checkable software requirements that agents can read and tools can validate.
- Best for
- Kiro:Spec-driven development with AI agents
- SLCR:Spec-driven development with AI agents
- Who it’s for
- Kiro:Professional developers and software teams building and maintaining large codebases.
- SLCR:Teams with long-lived codebases using AI agents for implementation.
- Pricing
- Kiro:Freemium
- SLCR:Open source
- Plans
- Kiro:KIRO FREE $0 · KIRO PRO $20 per user / month · KIRO PRO+ $40 per user / month · KIRO PRO MAX $100 per user / month · KIRO POWER $200 per user / month
- SLCR:—
- Open source
- Kiro:—
- SLCR:Yes, 10 GitHub stars
- Works with
- Kiro:AWS IAM Identity Center
- SLCR:JSON, TOML, YAML, ast-grep, Rust
Kiro features
- Spec-driven development. Generate executable specifications from natural-language prompts and run them against your code.
- Parallel AI agents. Run multiple agents that learn from each session to speed up large-scale code changes.
- Kiro CLI & IDE. Interact via a terminal UI or full-featured IDE with cloud-backed sessions.
- Cloud workspaces. Create cloud sessions that sync local agents, hooks, and steering configurations.
- Model selection & credits. Choose from open-weight, Claude, and premium models; usage metered in credits.
- Team billing & SSO. Per-user plans with consolidated billing, SAML/SCIM SSO via AWS IAM Identity Center.
SLCR features
- Sliceable requirements. Break a spec into small DAG slices so each agent sees only its relevant requirement.
- Linked DAG structure. Define dependencies between requirements with AND, OR, XOR relationships.
- Checkable acceptance criteria. Attach any validator (tests, linters, ast-grep rules) to automatically verify requirements.
- CLI implementation. Rust-based slcr CLI to init projects, run checks, and integrate with CI pipelines.
- Agent skill integration. Provides a skill for agents to read SLCR and use the CLI during code generation.
- Human-readable Markdown output. Render the structured spec as a Markdown document for easy human consumption.
Kiro vs SLCR FAQ
Is Kiro or SLCR free?+
Kiro has a free plan (KIRO FREE); paid plans start at $20/month per user (KIRO PRO). SLCR is free and open source.
Which is cheaper, Kiro or SLCR?+
SLCR is free, so it costs less. Kiro starts at $20/month per user (KIRO PRO).
Is Kiro or SLCR open source?+
SLCR is open source (wack/slcr on GitHub, MIT license). DevHunt has no public source repository on record for Kiro.
Do Kiro and SLCR integrate with the same tools?+
Their integration lists don't overlap: Kiro lists AWS IAM Identity Center; SLCR lists JSON, TOML, YAML, ast-grep and 1 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.