Reviewed 6 October 2026. Product statements are grounded in the linked documentation. Workflows and fictional examples are editorial guidance.
Original AI-generated concept illustration.
Memory should be editable and traceable
Persistent notes can help an agent avoid asking for the same project background repeatedly. They can also preserve outdated assumptions if nobody reviews them. An Obsidian vault offers a practical way to organize visible notes around projects, decisions, and reusable methods. The goal is not to place an entire business into one enormous prompt. It is to retrieve the relevant, current information for a specific task and keep the supporting records understandable to a person.
The Hermes bundled-skills catalog includes an Obsidian skill for note operations, and its plugin ecosystem includes community vault interfaces. Verify the current setup and scope in the linked documentation. This guide proposes a memory structure and review routine; it does not claim that connecting a vault creates unlimited model context or guarantees correct recall. Stored notes remain evidence to interpret, and important facts should retain their sources and dates.
Documentation: Hermes bundled skills catalog.
Separate stable facts from working notes
Create a few clear note categories. Project briefs describe the current goal and constraints. Decision notes explain choices that have been accepted. Working notes contain tentative ideas and unresolved questions. Reusable methods describe processes that apply across projects. Keep temporary task observations out of a general profile unless they have a continuing purpose. This distinction helps an agent avoid treating a brainstorming suggestion as a permanent instruction.
For a fictional website project, the brief might specify the audience, route format, approved colors, and article schema. A decision note might record why a specific image style was chosen. A working note might compare three possible navigation designs. If the agent needs to update the website, it should prioritize the current brief and accepted decisions, while treating the working note as background. Labels make that priority visible without relying on a hidden conversation history.
Give each important note a source and status
Include a short header containing the note's purpose, owner, last review date, and status. When a fact comes from a document or announcement, link the original source. When it reflects a decision, state who accepted it and when. A note can be current, provisional, or archived. Avoid copying the same rule into many files because those copies will eventually diverge. Link to the authoritative note when another project needs the same policy.
Dates should mean something specific. Last edited is not necessarily last verified. A typo fix can change the file timestamp without establishing that the product information remains accurate. Keep a separate review date for volatile facts such as pricing or supported integrations. If an agent updates a note, ask it to explain whether it changed wording, added evidence, or revised an accepted decision. That makes maintenance more precise than automatically refreshing every timestamp.
Start with a limited vault scope
Use a project-specific vault or a clearly bounded folder for the first trial. Include only the materials needed for one recurring task. Confirm how the integration selects the vault and whether it can write notes. Test read behavior before allowing edits. A small setup makes it easier to spot incorrect retrieval and accidental changes. It also reduces the chance that unrelated personal or client information enters a task that does not require it.
Create a disposable note with a distinctive fictional fact and ask the agent a question that requires it. Check whether the answer cites or identifies the correct note. Then add a second note containing an older conflicting value marked archived. Ask the question again. The desired behavior is to use the current note and surface the conflict if necessary, rather than combining both values. This simple trial tests whether the memory structure supports reliable selection.
Retrieve what the task needs
Ask the agent to find relevant notes before drafting a solution. Require it to identify the sources it used and any missing information. For a content brief, that might mean the audience note, style guide, and current product evidence. It does not require every meeting note in the vault. Selective retrieval keeps the task focused and makes source review possible. More context can add noise when it includes unrelated or contradictory material.
Use explicit references for important constraints. Instead of follow our usual process, ask for the current article-review checklist and the approved route format. The agent can then check the named records. If a source is absent, it should say so rather than reconstruct a rule from vague memory. For consequential work, compare the retrieved notes with the current task instruction. A new explicit request may supersede an older preference, and that change should be handled visibly.
Write back small reviewed updates
After a task, save information that will help the next session: an accepted decision, a confirmed output location, or a recurring repair. Avoid storing every generated paragraph as long-term memory. A useful update should have a clear purpose and enough evidence to understand it. If the note changes an accepted rule, preserve the previous decision or add a history entry. This makes it possible to distinguish a new requirement from an accidental rewrite.
Consider a website import that required a particular relative image path. Save the accepted path convention and the check that confirmed it. Do not save a broad claim that all future imports will work. If the convention changes, update the authoritative note and identify the affected projects. Small, precise records improve continuity without turning the vault into a collection of unsupported generalizations or repetitive summaries of entire conversations.
Prevent shared-memory confusion
When several agents or people use the same vault, define who owns each note and how concurrent edits are handled. Avoid having multiple workers rewrite one project brief simultaneously. Use separate working notes and consolidate reviewed findings into the authoritative record. Keep accepted outputs separate from speculative drafts. A shared folder is not automatically a reliable shared understanding; the retrieval and update rules determine whether the information stays coherent.
Review notes on a schedule appropriate to their volatility. Stable writing preferences may need little attention. Product facts and active project status need more frequent checks. Archive obsolete records with a reason and link to their replacement. Test retrieval after reorganizing files or changing integration settings. The value of agent memory comes from accurate selection and controlled updates, so maintenance should focus on those behaviors rather than on the sheer size of the vault.
A useful memory exercise
Prepare five small notes: project brief, accepted decisions, style guide, source register, and open questions. Ask the agent to create a task plan using only the relevant records. Include one unresolved requirement and see whether it remains unresolved. Review the plan, then save one accepted decision with its date and rationale. Start a new session and ask for the next task. Check whether the new decision is used without reviving an archived alternative.
This exercise reveals the difference between storage and useful continuity. If the agent repeats obsolete information, fix the note hierarchy or retrieval instructions. If it forgets the accepted decision, check the source scope and indexing behavior. Preserve the smallest working structure and expand gradually. A well-maintained vault should make the agent's understanding easier to inspect, correct, and hand off, while leaving the current task's requirements clearly in control.
Frequently asked questions
Does an Obsidian connection create unlimited context?
No. Notes are stored information that a workflow retrieves. The model still has limits, and retrieving a note does not guarantee it will interpret every detail correctly.
What information is worth saving?
Accepted decisions, current constraints, useful source records, and repeatable methods. Keep tentative ideas labeled so they do not become permanent instructions accidentally.
How do I handle conflicting notes?
Identify the authoritative current record, mark older information clearly, and preserve the reason for a change. Ask the agent to surface unresolved conflicts rather than merge them silently.
Can several agents share one vault?
They can share records through a suitable setup, but define ownership and update rules. Separate working notes reduce collisions while reviewed decisions remain in one authoritative place.
Resources and related articles
Continue with Hermes Desktop Plugins: Build a Useful Agent Workspace, Hermes Kanban Workflows: Move Agent Tasks from Ideas to Review, or Gemini Connected Apps: Plan a Controlled Workflow.
