Download .skills/wiki-capture/SKILL.md from the publisher, or copy the path and open the repository. PlugMCP lists the skill and does not host the file.
Where does wiki-capture live?
The publisher keeps it at https://github.com/Ar9av/obsidian-wiki.
Which agents can use wiki-capture?
Claude, Cursor, and Codex can read a SKILL.md you add from the publisher's repository.
>
name: wiki-capture
description: >
Turn the current conversation or finding into a structured permanent wiki note. Use for save/capture/preserve requests; QUICK MODE writes a fast _raw/ note. Supports named-vault routing such as @research save this. This captures current discussion, not external source ingestion.
Wiki Capture — Conversation to Wiki Note
You are preserving knowledge from the current conversation as a permanent wiki note. The goal is to extract the substance — the knowledge itself — not a summary of what was said.
Writing profile: Before drafting or rewriting natural-language Markdown in any mode, read and apply the Writing Profile Resolution section in llm-wiki/SKILL.md. Framework schema, provenance, safety, and operation-specific requirements take precedence.
WRITING.md preferences apply only to newly drafted or rewritten natural-language Markdown; preserve source content and structured records.
This skill has three modes:
Full mode (default) — classify the content and write a finished, cross-linked wiki page directly into the right category. This is the rest of this document (Steps 1–7).
Quick mode (--quick) — zero-friction staging: drop findings to _raw/ in under 60 seconds with no manifest/index/log/QMD writes. Used for mid-session capture and by the session-end Stop hook. See below, then stop — do not run the full-mode steps.
Correction mode (--correction) — capture one atomic correction as derived knowledge while leaving the immutable conversation/source untouched. Use the template below, then update only the derived consumers and tracking links.
Quick Mode (--quick)
Trigger when invoked as /wiki-capture --quick, by "quick capture" / "capture this finding" / "save this bug fix" / "save this gotcha" / "drop this to raw" / "quick save to wiki", or automatically by the session-end Stop hook.
Speed contract: Inline only. No subagents. No QMD. No manifest/index.md/log.md/hot.md writes. Target: <60 seconds. Promotion to full wiki pages happens later via /wiki-ingest.
Resolve config (Config Resolution Protocol in llm-wiki/SKILL.md): get OBSIDIAN_VAULT_PATH and OBSIDIAN_RAW_DIR (default: $OBSIDIAN_VAULT_PATH/_raw). Ensure $OBSIDIAN_RAW_DIR exists; create it if not.
Capture does not independently reinterpret validator schema inputs. When OBSIDIAN_ALLOWED_LIFECYCLES, OBSIDIAN_ALLOWED_RELATIONSHIP_TYPES, OBSIDIAN_REQUIRED_TRUST_FIELDS, or OBSIDIAN_SCHEMA_SOURCE is present, preserve it for the downstream lint/trust consumer: CLI values take precedence over environment/config values, which take precedence over framework defaults, and explicit blank or whitespace-only values fail closed. Omit a variable to use defaults.
Gate — KEEP or SKIP? Before extracting, judge whether this session has capture value. This keeps the skill safe to call automatically without spamming _raw/.
SKIP (exit with "Nothing worth capturing in this session.") if ALL are true: the conversation is purely conversational (planning/Q&A/explanation) with no implementation; no errors, debugging, or problem-solving visible; nothing surprising or undocumented; every finding is already obvious from the docs.
KEEP (proceed) if ANY are true: a fix or workaround was found through investigation; non-obvious library/API/framework behavior was confirmed (edge case, undocumented constraint, time-costing gotcha); a debugging session reached a concrete conclusion; a reusable pattern emerged.
When invoked via the Stop hook, err toward SKIP — only KEEP on clear evidence. When invoked manually, err toward KEEP — the user called it for a reason.
Scan for reusable findings — non-obvious bugs and root causes, framework/library gotchas, surprising API behavior, investigated workarounds, environment/toolchain quirks, patterns from debugging. Skip PM updates, config already in CLAUDE.md, inconclusive back-and-forth, anything obvious from the docs, and pleasantries. If nothing material emerged, say so and stop.
Cluster by topic — one _raw/ file per topic cluster, not per finding. Name each as a kebab-case slug (e.g. swift-actor-reentrancy, nextjs-hydration-mismatch).
Infer project context from repo names, file paths, framework mentions, error messages. Use the most specific name you can reliably infer; else null.
Write raw files — for each cluster, write $OBSIDIAN_RAW_DIR/<ISO-date>-<slug>.md. Read references/RAW-FORMAT.md for the full frontmatter spec, finding-block body structure, and provenance/confidence calibration. Per-cluster fields that vary: title, tags (2–4 from taxonomy), summary (≤200 chars), project (inferred or null), base_confidence (0.6 discussed → 0.75 fix applied → 0.9 test confirmed), provenance.extracted/provenance.inferred (sum to 1.0), lifecycle_changed (today), sources ("<project> session (<YYYY-MM-DD>)").
Confirm — list staged files and tell the user to run /wiki-ingest to promote them:
Staged to _raw/:
_raw/2026-05-27-swift-actor-reentrancy.md — "Actor reentrancy causes deadlock in async forEach"
Run /wiki-ingest to promote these to full wiki pages.
Quick mode deliberately does not write the manifest, index.md, log.md, hot.md, or refresh QMD — promotion via /wiki-ingest handles all of that. Stop here; do not run the full-mode steps below.
Correction Mode (--correction)
Use this mode when a user or stronger authority corrects a claim derived from an immutable conversation, tool result, or other raw source. Never edit or copy the raw source. Resolve config, read the vault AGENTS.md, and update an existing derived page when one owns the claim; otherwise create the smallest owner-compliant derived correction page.
Record exactly one atomic claim pair. speaker_type is semantic and must be assessed independently of a serialized message role (a tool result may be serialized as role=user). Do not include raw transcript excerpts.
correction_id: <stable-id>
source_locator: <immutable file:line or channel/thread/timestamp>
source_text_sha256: <64 lowercase hex chars>
serialized_role: <source role, if present>
speaker_type: user | assistant | teammate | tool_result | slack_member
original_claim:
subject: <exact entity or capability>
assertion: <single atomic value>
corrected_claim:
subject: <same exact entity or capability>
assertion: <single atomic value or null>
authority_class: contract | decision | code | test | deploy | runtime | db | narrative
verification_state: verified | inferred | unverified | contradicted
asserted_at: <ISO-8601 timestamp>
effective_at: <ISO-8601 timestamp or null>
as_of: <ISO-8601 timestamp>
supersedes: [<original-claim-id>]
consumer_propagation:
kw: open | not_applicable | complete
ob: open | not_applicable | complete
requirements: open | not_applicable | complete
code: open | not_applicable | complete
tests: open | not_applicable | complete
ai_memory: open | not_applicable | complete
corrected_at: <ISO-8601 timestamp>
Before any derived write, compute source_pre_sha256 directly from the immutable source and require it to equal source_text_sha256. After writing the correction and updating derived consumers, recompute source_post_sha256 from the same locator. Abort and report an immutability violation unless source_pre_sha256 == source_post_sha256 == source_text_sha256. This verification is mandatory even when the correction write succeeds.
After writing the derived correction, link the immutable source to the created/updated page through .manifest.json, append only the correction ID and affected-page counts to log.md, and propagate the atomic correction to every consumer independently. Mark a consumer complete only after verifying that consumer; do not collapse mixed results into a single aggregate status. Keep secrets, raw excerpts, and source copies out of the correction record.
Full Mode
Before You Start
Resolve config — follow the Config Resolution Protocol in llm-wiki/SKILL.md (inline @name override → walk up CWD for .env → global config → prompt setup). This gives OBSIDIAN_VAULT_PATH and OBSIDIAN_LINK_FORMAT (default: wikilink).
Read $OBSIDIAN_VAULT_PATH/index.md to understand existing wiki content (avoid duplicates)
Read $OBSIDIAN_VAULT_PATH/hot.md if it exists — it gives context on recent activity
When writing internal links in Step 5, apply the link format from llm-wiki/SKILL.md (Link Format section) using the OBSIDIAN_LINK_FORMAT value.
Step 1: Identify What's Worth Preserving
Scan the conversation. Ask: what knowledge emerged here that would be valuable in 3 months with no memory of this chat?
Worth preserving:
Decisions made and why they were made
Analysis, frameworks, mental models developed
Technical findings, patterns, or procedures
Synthesized understanding of a topic
Clear explanations of a concept that took effort to arrive at
Key facts from an external source discussed in the conversation
Skip:
Logistics, scheduling, pleasantries
Exploratory back-and-forth where no conclusion was reached
Content that's already in the wiki
If nothing material emerged, tell the user and stop.
Step 2: Classify the Content Type
Assign one of five types — this determines the target folder and tone:
Type
Description
Target folder
synthesis
Multi-step analysis or an answer to a specific question that required reasoning
synthesis/
concept
A definition, framework, or mental model (what a thing is)
concepts/
source
Summary of an external document, article, or resource discussed
references/
decision
A strategic, architectural, or design choice and its rationale
synthesis/
session
A complete discussion summary when the conversation spans multiple topics
journal/
If the content clearly belongs to a specific project (detected from context or user mention), place it under projects/<project-name>/<category>/ instead.
Step 3: Rewrite as Declarative Knowledge
Do not write a summary of the conversation. Write the knowledge itself, in declarative present tense:
Not: "The user asked about X and Claude explained that..."
Yes: "X works by..."
Not: "We decided to use Y because..."
Yes: "Y is preferred over Z because [reason]. [^[inferred] if the rationale was implied, not stated explicitly]"
Apply provenance markers per llm-wiki:
Extracted — explicitly stated in the conversation (no marker)
Inferred — generalized or synthesized from the conversation → ^[inferred]
Ambiguous — disputed, uncertain, or contradictory → ^[ambiguous]
Step 4: Generate a Slug and Title
Derive a clear, descriptive title from the content. Slugify it:
Lowercase, words separated by hyphens
Max 50 characters
Avoid dates in the slug (the frontmatter has created)
Step 5: Write the Wiki Note
Create the file at the target path with required frontmatter:
# Title
## Context
<What prompted this — the problem or question being addressed>
## Finding / Decision
<The core knowledge or conclusion>
## Reasoning
<Why this is the case or why this choice was made>
## Implications
<What follows from this — what to watch for, next steps, trade-offs>
## Related
<[[wikilinks]] to connected pages>
concept:
# Title
<Definition in one clear sentence.>
## What It Is
<Explanation of the concept>
## How It Works
<Mechanism or structure>
## When to Use
<Applicability, conditions, trade-offs>
## Related
<[[wikilinks]]>
source:
# Title
> Source: <title or URL>
## What It Covers
<What the source is about>
## Key Points
<Bulleted claims with provenance markers>
## Open Questions
<What it raises but doesn't answer — omit if none>
## Related
<[[wikilinks]]>
session:
# Title
*Session captured: <date>*
## Topics Covered
<Brief list>
## Key Takeaways
<The 3-5 most important things that emerged>
## Decisions Made
<Any explicit decisions, with rationale>
## Open Questions
<What remains unresolved>
## Related
<[[wikilinks]]>
Every note must link to at least 2 existing wiki pages. Search index.md before writing. If fewer than 2 related pages exist, create minimal stubs for the most important concepts referenced.
Step 5b: Update the Owner Profile and Todo Index
The memory surface is only as good as what gets written into it. This is the step
that keeps it alive — without it the profile stays empty and the session recap has
nothing to inject.
Durable facts about the person. If the conversation revealed something stable
about how the user works — their stack, their conventions, their constraints,
their timezone — record it:
obsidian-wiki memory profile set <key> "<value>" --confidence 0.85 --source "session:<date>"
Apply the same KEEP/SKIP discipline as Step 1, and one extra rule that matters more:
Only what the user actually told you, directly or by clear demonstration.
Never infer a durable fact about a person from a document that was ingested —
that is the document's content and belongs on a page, not in their profile.
Stable, not incidental. "Uses Postgres" is a fact. "Ran a migration today"
is an event; that belongs in the log.
Calibrate the confidence. Stated outright is ~0.9. Demonstrated repeatedly
is ~0.75. Inferred from one session's behaviour is ~0.5 — and if you are below
0.5, do not write it at all.
Correct, don't duplicate.profile set replaces an existing key, so
updating a changed fact is the same command.
Open threads. If the conversation left work unfinished, record it so the next
session picks it up:
obsidian-wiki memory todo add "<the open thread>" --origin "<page or project>"
Re-adding an open thread with the same text touches it rather than duplicating,
so this is safe to call when you are unsure whether it already exists. If the
conversation closed a thread that is already listed, close it:
obsidian-wiki memory todo list --vault "$OBSIDIAN_VAULT_PATH"
obsidian-wiki memory todo done <id>
Never close a thread the user did not actually finish. Staleness is reported by
the tooling; it is not your job to tidy the list.
In quick mode, do this step but skip Step 6 — profile and todo writes are
cheap, locked, and are the whole point of capturing.
Step 6: Update Tracking Files
One locked call updates all three:
obsidian-wiki memory sync CAPTURE \
type=<type> page="<path>" title="<title>" \
--takeaways "<what this capture changes about the picture, if anything>"
Never hand-edit index.md, log.md, or hot.md — see
.skills/llm-wiki/references/MEMORY.md. Omit --takeaways when the capture
does not shift the overall picture; the previous takeaways carry across.
Step 7: Confirm to User
Report the saved path and title:
Saved to: projects/<name>/synthesis/<slug>.md
Title: <Title>
Type: synthesis
Quality Checklist
Content rewritten as declarative knowledge (not a chat transcript)
Type classified correctly; target path is in the right folder
Frontmatter complete with title, category, tags, sources, summary, provenance
At least 2 wikilinks to existing pages
index.md, log.md, and hot.md updated
Confirmed save path to user
QMD Refresh After Vault Writes
QMD is a search index, not the source of truth. If $QMD_WIKI_COLLECTION is empty or unset, skip this step. Run it only after this skill has written or rewritten vault markdown. If QMD refresh fails, do not roll back the vault changes; report the QMD status separately.
Use $QMD_CLI if set; otherwise use qmd.
${QMD_CLI:-qmd} update
If the output says vectors are needed or embeddings may be stale, run:
${QMD_CLI:-qmd} embed
Verify the collection with either:
${QMD_CLI:-qmd} ls "$QMD_WIKI_COLLECTION"
or, when a specific page path is known:
${QMD_CLI:-qmd} get "qmd://$QMD_WIKI_COLLECTION/<page>.md" -l 5
Record one of:
QMD refreshed: update + embed + verified
QMD refreshed: update only + verified
QMD skipped: QMD_WIKI_COLLECTION unset
QMD skipped: qmd CLI unavailable
QMD failed: <short error summary>
How do I install wiki-capture?
Download .skills/wiki-capture/SKILL.md from the publisher, or copy the path and open the repository. PlugMCP lists the skill and does not host the file.
Where does wiki-capture live?
The publisher keeps it at https://github.com/Ar9av/obsidian-wiki.
Which agents can use wiki-capture?
Claude, Cursor, and Codex can read a SKILL.md you add from the publisher's repository.