zeroclaw-labs/zeroclaw · error · anyhow::Error

Validation failed after write: {e}

Error message

Validation failed after write: {e}

What it means

Error "Validation failed after write: {e}" thrown in zeroclaw-labs/zeroclaw.

Source

Thrown at crates/zeroclaw-runtime/src/skills/improver.rs:108

        // Preserve any existing audit trail from the original file.
        let audit_trail = extract_audit_trail(&existing);
        let final_content = if audit_trail.is_empty() {
            format!("{updated}{audit_entry}")
        } else {
            format!("{updated}\n{audit_trail}{audit_entry}")
        };

        // Atomic write: temp file → validate → rename.
        let temp_path = skill_dir.join(".SKILL.md.tmp");
        tokio::fs::write(&temp_path, final_content.as_bytes())
            .await
            .with_context(|| format!("Failed to write temp file: {}", temp_path.display()))?;

        // Validate the temp file is readable and valid.
        let written = tokio::fs::read_to_string(&temp_path).await?;
        if let Err(e) = validate_skill_content(&written) {
            let _ = tokio::fs::remove_file(&temp_path).await;
            bail!("Validation failed after write: {e}");
        }

        // Rename atomically (same filesystem).
        tokio::fs::rename(&temp_path, &md_path)
            .await
            .with_context(|| {
                format!(
                    "Failed to rename {} to {}",
                    temp_path.display(),
                    md_path.display()
                )
            })?;

        self.cooldowns.insert(slug.to_string(), Instant::now());

        Ok(Some(slug.to_string()))
    }

View on GitHub (pinned to 88bb9c8533)

Solutions

1. Fix the validation error reported after write and re-run the improver.

When it happens

Trigger: Thrown at crates/zeroclaw-runtime/src/skills/improver.rs:108 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of zeroclaw-labs/zeroclaw@88bb9c8533 (2026-08-23). Data as JSON: /api/errors/e8226c4e83f662fa. Report an issue: GitHub.