Project Memory Guard

Enforce project boundaries and memory writeback rules before anything enters project memory. Use before: writing notes into project memory, saving outputs/tasks/summaries, importing external messages into projects, migrating historical records. Triggered when anything attempts to write to project memory or when project boundary validation is needed.

Validate every memory write against project and writeback rules. Prevent contamination and schema drift.

Input

Required fields:

• raw_content — the content attempting to enter project memory
• candidate_project_id — the project being written to
• memory_type — type of memory: note, finding, task, summary, record, etc.
• source — where this came from: user message, paper, tool output, etc.
• timestamp — ISO-8601 timestamp of when the content was created
• confidence — confidence score 0.0–1.0 for project assignment

Output Schema

decision: "accept" | "reject" | "reroute"
destination: string | null          # project_id or "inbox" or null
normalized_record: object | null    # cleaned record if accepted/rerouted
contamination_risk: "none" | "low" | "medium" | "high"
missing_fields: string[] | null
reason: string

Hard Rules

Condition	Decision
Missing project_id	reject — never enter formal project memory
Missing memory_type	reject — no formal writeback
Missing timestamp	reject — no formal writeback
Confidence < 0.6	reroute to inbox
Cross-project ambiguity	reroute to inbox or cleanup mode
All fields present + high confidence	accept

Reroute Destinations

• inbox — unverified content waiting for manual review
• cleanup — ambiguous content needing disambiguation
• Specific project_id — when rerouting to a known project

Normalization

When decision is accept or reroute, normalize the record:

• Strip identifying metadata not in schema
• Add validated_at timestamp
• Add guard_version = "1.0"
• Preserve original raw_content in normalized_record.raw

Failure Handling

If uncertain about any field:

• Do not guess project_id or memory_type
• Set decision = "reroute" with destination = "inbox"
• List missing_fields explicitly
• Explain in reason

Never force acceptance when validation fails.