IOSM CLIvsScream Code
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
IOSM CLI
rokoss21 · Terminal agent
#241OSSMCP
Panel
5.21 spec wins
- Reliability
- 4.8
- Usefulness
- 5.2
- Cost
- 7.2
- Longevity
- 3.7
“Recent releases lead with configurable keybindings, which is one way to announce that the hard part is finished.”
Scream Code
LIUTod · Terminal agent
#232OSSMCP
Panel
5.10 spec wins
- Reliability
- 5.0
- Usefulness
- 5.5
- Cost
- 5.2
- Longevity
- 4.7
“Its sub-agent roles include coder, verifier, reviewer and oracle, which is one more oracle than most engineering teams can afford.”
Spec by spec
| Spec | IOSM CLI | Scream Code |
|---|---|---|
| Architecture | ||
| Category | Terminal agent | Terminal agent |
| Runs | local | local |
| Platforms | macos, linux, windows | macos, linux |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | Yes | Yes |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | Yes |
| Git operations | Yes | Yes |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | Yes | Yes |
| Headless / CI mode | No | No |
| Models | ||
| Backbone | multiple providers | 130+ providers, OpenAI-compatible |
| Bring your own model | Yes | Yes |
| Local models | No | No |
| Cost | ||
| Pricing model | byok | byok |
| Starts at | $0/mo | $0/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | MIT |
| GitHub stars | 144 | 141 |
Which one would each critic pick
| Critic | IOSM CLI | Scream Code | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 5.8 | 5.3 | IOSM CLI — Pick this if you want to grant permission a turn at a time rather than once at the start; pick Claude Code if you would rather approve less and read more diffs. |
| El Crítico | 5.0 | 4.0 | IOSM CLI — Policy resolution is documented across interactive and RPC modes, which means there is a remote-callable surface attached to filesystem and shell access. |
| El Profesor | 5.0 | 5.3 | Scream Code — An independent judge agent evaluates the goal loop, which is separation of generation from assessment, though the judge shares the generator's failure modes. |
| La Inversora | 4.5 | 5.0 | Scream Code — Around fourteen hundred weekly package installs against 137 stars, from a single author with no company, no service and nothing charged for. |
| La Jefa | 5.0 | 4.3 | IOSM CLI — No licence cost across sixty engineers, and the layered policy engine is the only artefact here I could put in front of a security reviewer without apologising. |
| El Hacker | 6.0 | 6.8 | Scream Code — MIT, more than 130 providers built in plus any compatible endpoint, and it speaks the tool protocol, so my servers attach without a wrapper. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.