| 1 | package agent |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "os" |
| 7 | "strings" |
| 8 | "time" |
| 9 | |
| 10 | "reasonix/internal/evidence" |
| 11 | "reasonix/internal/tool" |
| 12 | ) |
| 13 | |
| 14 | func (a *Agent) dispatchResolvedTool(ctx context.Context, plan *toolCallPlan) (result string, images []string, execution *tool.ShellExecution, err error) { |
| 15 | result, images, execution, err = a.invokeResolvedTool(ctx, plan) |
| 16 | if err == nil || ctx.Err() != nil || !plan.readOnly || !isTransientToolError(err) { |
| 17 | return result, images, execution, err |
| 18 | } |
| 19 | if plan.effects.StateMutation { |
| 20 | return result, images, execution, err |
| 21 | } |
| 22 | retryResult, retryImages, retryExec, retryErr := a.invokeResolvedTool(ctx, plan) |
| 23 | if retryExec != nil { |
| 24 | execution = retryExec |
| 25 | } |
| 26 | return retryResult, retryImages, execution, retryErr |
| 27 | } |
| 28 | |
| 29 | func (a *Agent) invokeResolvedTool(ctx context.Context, plan *toolCallPlan) (result string, images []string, execution *tool.ShellExecution, err error) { |
| 30 | runTool, runArgs := plan.runTool, plan.runArgs |
| 31 | ctx = WithParentWriteClaimID(ctx, plan.parentWriteClaimID) |
| 32 | if reader, ok := runTool.(tool.ReadExecutor); ok { |
| 33 | start := time.Now() |
| 34 | var env tool.ReadResultEnvelope |
| 35 | result, env, err = reader.ExecuteRead(ctx, runArgs) |
| 36 | plan.readActiveMillis += max(1, time.Since(start).Milliseconds()) |
| 37 | if err == nil { |
| 38 | plan.readEnvelope = &env |
| 39 | } |
| 40 | return result, nil, nil, err |
| 41 | } |
| 42 | if de, ok := runTool.(tool.DetailedExecutor); ok { |
| 43 | var detailed tool.DetailedResult |
| 44 | detailed, err = de.ExecuteDetailed(ctx, runArgs) |
| 45 | result, images, execution = detailed.Output, detailed.Images, detailed.Execution |
| 46 | if execution != nil && plan.verification { |
| 47 | switch { |
| 48 | case err != nil || (execution.ExitCode != nil && *execution.ExitCode != 0): |
| 49 | execution.Verification = tool.ShellVerificationFailed |
| 50 | default: |
| 51 | execution.Verification = tool.ShellVerificationPassed |
| 52 | } |
| 53 | } else if execution != nil && execution.Verification == "" { |
| 54 | execution.Verification = tool.ShellVerificationNotVerification |
| 55 | } |
| 56 | if execution != nil && evidence.BashCommandMayBeOpaqueMutation(runArgs) && |
| 57 | execution.MutationRisk == tool.ShellMutationMayHaveCompleted { |
| 58 | execution.MutationRisk = tool.ShellMutationUnknown |
| 59 | } |
| 60 | return result, images, execution, err |
| 61 | } |
| 62 | if it, ok := runTool.(tool.ImageTool); ok { |
| 63 | result, images, err = it.ExecuteWithImages(ctx, runArgs) |
| 64 | return result, images, execution, err |
| 65 | } |
| 66 | result, err = runTool.Execute(ctx, runArgs) |
| 67 | var missing *os.PathError |
| 68 | if errors.Is(err, os.ErrNotExist) && errors.As(err, &missing) { |
| 69 | err = &tool.OperationError{Diagnostic: tool.OperationDiagnostic{Code: tool.FSNotFound, Path: missing.Path, Recovery: "read the target at its current path, or create a new file when required"}, Cause: err} |
| 70 | } |
| 71 | return result, images, execution, err |
| 72 | } |
| 73 | |
| 74 | func isTransientToolError(err error) bool { |
| 75 | if err == nil { |
| 76 | return false |
| 77 | } |
| 78 | var classified interface{ RetryableToolError() bool } |
| 79 | if errors.As(err, &classified) { |
| 80 | return classified.RetryableToolError() |
| 81 | } |
| 82 | if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) { |
| 83 | return false |
| 84 | } |
| 85 | msg := strings.ToLower(err.Error()) |
| 86 | for _, token := range []string{ |
| 87 | "execution may have completed", "execution result is unknown", |
| 88 | "after dispatch", "was not retried", |
| 89 | } { |
| 90 | if strings.Contains(msg, token) { |
| 91 | return false |
| 92 | } |
| 93 | } |
| 94 | for _, token := range []string{ |
| 95 | "timeout", "temporar", "connection reset", "connection refused", |
| 96 | "broken pipe", "eof", "i/o timeout", "tls handshake", "unavailable", |
| 97 | } { |
| 98 | if strings.Contains(msg, token) { |
| 99 | return true |
| 100 | } |
| 101 | } |
| 102 | return false |
| 103 | } |
| 104 |