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Agentic memory system for development teams - captures moments (wins, fails, decisions, notes), generates RETEX prescriptive cards, enables context handoff between sessions/agents, and supports multi-agent coordination with task tracking
VibeTape has 20 tools with comprehensive schemas and mostly clear descriptions. Strengths: all tools have input schemas with typed parameters and descriptions; most tools clearly state WHAT and WHEN; tool names follow verb_noun patterns. Weaknesses: descriptions are verbose (many exceed 200 chars, wasting tokens); error handling strategies are not documented (no recovery guidance); some parameters lack constraints (e.g., threshold ranges 0-1 but no default is actionable); no tool output schemas documented; no security annotations (permissions, scope declarations); tool composition could be tighter (e.g., mark_moment + list_moments could offer a single 'capture_and_fetch' for common workflows).
Register a new actor (human or agent) for multi-agent traceability
Add a comment to a moment
Create a relation between two moments
Create a new task for tracking and agent coordination
Generate a compact transition/handoff card for session continuity with token budget awareness
Retrieve an actor profile with statistics
Retrieve task details with related moments
Hand off a task from one agent to another with context
Output schemas are not documented. Tools return data structures but LLMs cannot see expected fields, types, or pagination info. This forces agents to guess at response structure and plan blind downstream calls.
Descriptions are often verbose (150-200+ chars), wasting tokens. E.g., 'generate_context_handoff' description is ~170 chars when it could be 80-100 chars. Baseline A+ tools average 194 chars across ALL params; individual tool descriptions should be tighter.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-22 | C | 65 | 2026-07-28+ | v2 |
| 2026-03-09 | F | 39 | - | v1 |
Generate a RETEX (prescriptive retrospective) card from a moment using LLM analysis
List all registered actors
List recent moments with optional filtering
List generated RETEX cards
List tasks with optional filtering
Capture a development moment (win, fail, decision, note) with optional git context and tags
Full-text search moments by title and details
Semantic search moments using embeddings with filtering
Suggest generating a transition card when context nearing capacity
Detect and mark trivial/noisy moments, merge duplicates, and update signal scores
Update an actor's profile
Update task status, outcome, or assign to actor
No error handling guidance. Descriptions do not explain what to do if a tool call fails (e.g., 'moment not found', 'similarity threshold invalid'). Agents need recovery paths, not just what the tool does.
Numeric parameters lack min/max constraints in descriptions. E.g., 'threshold' in search_moments_advanced states '0-1' but no guidance on what happens outside that range or what thresholds are sensible. 'windowDays' in sweep_noise has no max. Unbounded numeric parameters let LLMs pass absurd values.
No scope declarations or permission hints. Tools like 'mark_moment' and 'delete_task' do not declare what permissions they require (e.g., 'write:moments', 'admin:tasks'). Agents cannot be configured with least-privilege access.
No tool annotations. Tools do not declare readOnlyHint, destructiveHint, or idempotentHint. Agents cannot distinguish safe reads from risky writes without reading descriptions, increasing error likelihood.
Parameter 'kind' in mark_moment and add_relation uses enums correctly, but similar constraints are missing elsewhere. E.g., 'estimatedComplexity' in create_task has enum but 'status' in update_task lacks enum declaration in the visible schema.
Tool composition could be tighter. 'mark_moment' followed by 'list_moments' is a common pattern, but no batch variant exists. Similarly, 'add_comment' is singular; agents calling it in a loop waste tokens. Batch tools like 'add_comments_batch' or 'mark_moments_batch' would reduce round-trips.