feat(agents): add vibe adapter

[yyovil]

Adds the vibe harness, stacked on #119 (agent platform). Adapter package + Constructors() registration + resolver test.

🤖 Generated with Claude Code

Stack

1. feat(agents): agent platform — registry, activity hooks, harness allowlist #119
2. feat(agents): add grok adapter #120
3. feat(agents): add droid adapter #121
4. feat(agents): add amp adapter #122
5. feat(agents): add agy adapter #123
6. feat(agents): add crush adapter #124
7. feat(agents): add aider adapter #125
8. feat(agents): add cursor adapter #126
9. feat(agents): add qwen adapter #127
10. feat(agents): add copilot adapter #128
11. feat(agents): add goose adapter #129
12. feat(agents): add auggie adapter #130
13. feat(agents): add continue adapter #131
14. feat(agents): add devin adapter #132
15. feat(agents): add cline adapter #133
16. feat(agents): add kimi adapter #134
17. feat(agents): add kiro adapter #135
18. feat(agents): add kilocode adapter #136
19. feat(agents): add vibe adapter #137 👈 current
20. feat(agents): add pi adapter #138
21. feat(agents): add autohand adapter #139

[greptile-apps]

Greptile Summary

Introduces the Mistral Vibe agent adapter, following the same structure as the existing sibling adapters (kilocode, kiro, etc.). The adapter is registered in the Constructors() list and validated by the existing wiring resolver test.

• vibe.go implements binary resolution, permission-mode-to---agent-profile mapping, no-op hooks/SessionInfo (Tier C), and --resume-based restore; it is consistent with the established adapter contract.
• vibe_test.go covers launch, restore, permission mapping, no-ops, and binary-resolver cancellation; TestContextCancellation omits GetLaunchCommand, leaving that one guard untested.
• registry.go and wiring_test.go each receive a one-line addition to register and smoke-test the new harness.

Confidence Score: 5/5

Safe to merge; all four files are additive, the adapter correctly follows the established plugin contract, and the only gap is a missing test assertion.

The vibe adapter is a straightforward, additive implementation with no changes to existing code paths. Binary resolution, permission mapping, context guards, and the no-op hooks/SessionInfo are all correctly implemented and consistent with sibling adapters. The only finding is that TestContextCancellation does not cover GetLaunchCommand, but the guard itself is present and correct in the implementation.

No files require special attention; vibe_test.go has a minor test coverage gap for the GetLaunchCommand context guard.

Important Files Changed

Filename	Overview
backend/internal/adapters/agent/vibe/vibe.go	New Mistral Vibe adapter following the same plugin pattern as sibling adapters; binary resolution, permission-mode mapping, and context guards are all correct.
backend/internal/adapters/agent/vibe/vibe_test.go	Good coverage of command-building paths and no-op methods; TestContextCancellation omits GetLaunchCommand, leaving that guard untested.
backend/internal/adapters/agent/registry/registry.go	Minimal one-line addition of vibe.New() to the constructor list, consistent with the existing registration pattern.
backend/internal/daemon/wiring_test.go	Adds {domain.HarnessVibe, "vibe"} to the resolver smoke-test; correct and complete.

Sequence Diagram

sequenceDiagram
    participant AO as AO Daemon
    participant P as vibe.Plugin
    participant VB as vibeBinary()
    participant RVB as ResolveVibeBinary()
    participant OS as OS / PATH

    AO->>P: GetLaunchCommand(ctx, cfg)
    P->>P: ctx.Err() guard
    P->>VB: vibeBinary(ctx)
    alt resolvedBinary cached
        VB-->>P: cached path
    else first call
        VB->>RVB: ResolveVibeBinary(ctx)
        RVB->>OS: exec.LookPath("vibe")
        OS-->>RVB: path or error
        RVB-->>VB: binary path
        VB->>VB: cache resolvedBinary
        VB-->>P: binary path
    end
    P->>P: appendAgentFlags(cmd, permissions)
    P->>P: append -p prompt (if set)
    P-->>AO: "["vibe","--trust","--output","text",(--agent profile),"-p","<prompt>"]"

    AO->>P: GetRestoreCommand(ctx, cfg)
    P->>P: ctx.Err() guard
    P->>P: check MetadataKeyAgentSessionID
    P->>VB: vibeBinary(ctx)
    VB-->>P: binary path (cached)
    P->>P: appendAgentFlags(cmd, permissions)
    P->>P: append --resume agentSessionID
    P-->>AO: "["vibe","--trust","--output","text",(--agent profile),"--resume","<id>"], ok=true"

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