proof

Proof - Collaborative Markdown Editor

Proof is a collaborative document editor for humans and agents. It supports two modes:

1. Web API - Create and edit shared documents via HTTP (no install needed)
2. Local Bridge - Drive the macOS Proof app via localhost:9847

Identity and Attribution

Every write to a Proof doc must be attributed. Two fields carry the agent's identity:

• Machine ID (by on every op, X-Agent-Id header): ai:galeharness-cli — stable, lowercase-hyphenated, machine-parseable. Appears in marks, events, and the API response.
• Display name (name on POST /presence): GaleHarness CLI — human-readable, shown in Proof's presence chips and comment-author badges.

Set the display name once per doc session by posting to presence with the X-Agent-Id header; Proof binds the name to that agent ID for the session. These values are the defaults for any caller of this skill; callers running HITL review (references/hitl-review.md) may pass a different identity pair if a distinct sub-agent should own the doc. Do not use ai:compound or other ad-hoc variants — identity stays uniform unless a caller explicitly overrides it.

Human-in-the-Loop Review Mode

Human-in-the-loop iteration over an existing local markdown file: upload to Proof, let the user annotate in Proof's web UI, ingest feedback as in-thread replies and tracked edits, and sync the final doc back to disk. Two entry points, identical mechanics — load references/hitl-review.md for the full loop spec (invocation contract, mark classification, idempotent ingest passes, exception-based terminal reporting, end-sync atomic write) in either case:

• Direct user request — a bare user phrase naming a local markdown file and asking to iterate collaboratively via Proof: "share this to proof so we can iterate", "iterate with proof on this doc", "HITL this file with me", "let's get feedback on this in proof", "open this in proof editor so I can review". The file is whichever markdown the user just created, edited, or referenced; if ambiguous, ask which file. This is a first-class entry point — do not require an upstream caller.
• Upstream skill handoff — gh-brainstorm, gh-ideate, or gh-plan finishes a draft and hands it off for human review before the next phase, passing the file path and title explicitly.

Web API (Primary for Sharing)

Create a Shared Document

No authentication required. Returns a shareable URL with access token.

curl -X POST https://www.proofeditor.ai/share/markdown \
  -H "Content-Type: application/json" \
  -d '{"title":"My Doc","markdown":"# Hello\n\nContent here."}'

Response format:

{
  "slug": "abc123",
  "tokenUrl": "https://www.proofeditor.ai/d/abc123?token=xxx",
  "accessToken": "xxx",
  "ownerSecret": "yyy",
  "_links": {
    "state": "https://www.proofeditor.ai/api/agent/abc123/state",
    "ops": "https://www.proofeditor.ai/api/agent/abc123/ops"
  }
}

Use the tokenUrl as the shareable link. The _links give you the exact API paths.

Read a Shared Document

curl -s "https://www.proofeditor.ai/api/agent/{slug}/state" \
  -H "x-share-token: <token>"

Edit a Shared Document

All operations go to POST https://www.proofeditor.ai/api/agent/{slug}/ops

Note: Use the /api/agent/{slug}/ops path (from _links in create response), NOT /api/documents/{slug}/ops.

Authentication for protected docs:

• Header: x-share-token: <token> or Authorization: Bearer <token>
• Token comes from the URL parameter: ?token=xxx or the accessToken from create response
• Header: X-Agent-Id: ai:galeharness-cli (required for presence; include on ops for consistent attribution)

Wire-format reminder. /api/agent/{slug}/ops uses a top-level type field; /api/agent/{slug}/edit/v2 uses an operations array where each entry has op. Do not mix — sending op to /ops returns 422.

Every mutation requires a baseToken. Use the mutationBase.token from your most recent /state or /snapshot read and include it in the request body. These tokens do not go stale within seconds just because another write happened; STALE_BASE is recoverable. If you get BASE_TOKEN_REQUIRED, MISSING_BASE, INVALID_BASE_TOKEN, or STALE_BASE, re-read and retry once. Only do a pre-mutation read when you have not read /state or /snapshot in the current session. See the baseToken recipe in references/hitl-review.md.

Idempotency-Key header is recommended on every mutation and required when /state.contract.idempotencyRequired is true. Reuse the same key only when retrying the exact same logical write with the same body. A changed body or fresh key is a new logical write.

Retry discipline after mutation errors — verify before retrying.

• Token errors (STALE_BASE, BASE_TOKEN_REQUIRED, MISSING_BASE, INVALID_BASE_TOKEN) are safe to auto-retry once after a fresh /state or /snapshot.
• Anchor errors (QUOTE_NOT_FOUND, AMBIGUOUS_QUOTE, missing block ref) mean the write did not commit, but do not blindly retry. Re-read, update the quote/ref, and decide whether the original intent still applies.
• Payload errors (422, invalid op shape, unsupported field) should not be retried unchanged.
• Ambiguous failures (COLLAB_SYNC_FAILED, REWRITE_BARRIER_FAILED, PROJECTION_STALE, INTERNAL_ERROR, 5xx, network timeout, or any 202 with collab.status: "pending") may already have written. Re-read /state, verify whether the intended mark/edit exists, and retry only if it is absent.
• Idempotency only protects retries of the exact same request. If you change the body or key, the server treats it as a new write.

Duplicate marks usually come from retrying after an ambiguous failure without first verifying current state.

Comment on text:

{"type": "comment.add", "quote": "text to comment on", "by": "ai:galeharness-cli", "text": "Your comment here", "baseToken": "<token>"}

Reply to a comment:

{"type": "comment.reply", "markId": "<id>", "by": "ai:galeharness-cli", "text": "Reply text", "baseToken": "<token>"}

Resolve / unresolve a comment:

{"type": "comment.resolve", "markId": "<id>", "by": "ai:galeharness-cli", "baseToken": "<token>"}
{"type": "comment.unresolve", "markId": "<id>", "by": "ai:galeharness-cli", "baseToken": "<token>"}

Suggest a replacement (pending — user must accept/reject):

{"type": "suggestion.add", "kind": "replace", "quote": "original text", "by": "ai:galeharness-cli", "content": "replacement text", "baseToken": "<token>"}

Suggest and immediately apply (tracked but committed — user can reject to revert):

{"type": "suggestion.add", "kind": "replace", "quote": "original text", "by": "ai:galeharness-cli", "content": "replacement text", "status": "accepted", "baseToken": "<token>"}

status: "accepted" creates the suggestion mark and commits the change in one call. The mark persists as an audit trail with per-edit attribution and a reject-to-revert affordance. Works with kind: "insert" | "delete" | "replace".

Accept or reject an existing suggestion:

{"type": "suggestion.accept", "markId": "<id>", "by": "ai:galeharness-cli", "baseToken": "<token>"}
{"type": "suggestion.reject", "markId": "<id>", "by": "ai:galeharness-cli", "baseToken": "<token>"}

suggestion.resolve is not supported — use accept or reject instead.

Bulk rewrite (whole-doc replacement):

{"type": "rewrite.apply", "content": "full new markdown", "by": "ai:galeharness-cli", "baseToken": "<token>"}

Block-level edits via /edit/v2 (separate endpoint, separate shape):

curl -X POST "https://www.proofeditor.ai/api/agent/{slug}/edit/v2" \
  -H "Content-Type: application/json" \
  -H "x-share-token: <token>" \
  -H "X-Agent-Id: ai:galeharness-cli" \
  -H "Idempotency-Key: <uuid>" \
  -d '{
    "by": "ai:galeharness-cli",
    "baseToken": "mt1:<token>",
    "operations": [
      {"op": "replace_block", "ref": "b3", "block": {"markdown": "Updated paragraph."}},
      {"op": "insert_after", "ref": "b3", "blocks": [{"markdown": "## New section"}]}
    ]
  }'

Supported op kinds inside operations:

op	Shape
replace_block	{"op":"replace_block","ref":"b8","block":{"markdown":"new content"}}
insert_after	{"op":"insert_after","ref":"b3","blocks":[{"markdown":"new block"}]}
insert_before	{"op":"insert_before","ref":"b3","blocks":[{"markdown":"new block"}]}
delete_block	{"op":"delete_block","ref":"b6"}
replace_range	{"op":"replace_range","fromRef":"b2","toRef":"b5","blocks":[{"markdown":"replacement"}]}
find_replace_in_block	{"op":"find_replace_in_block","ref":"b4","find":"old","replace":"new","occurrence":"first"}

/edit/v2 commits the whole operations array atomically and can batch dozens of block edits in one request. Read /snapshot to get block ref IDs and the mutationBase.token; if any write has landed since the last snapshot, re-fetch /snapshot before building block operations.

Editing while a client is connected is fine. /edit/v2, suggestion.add (including status: "accepted"), and all comment ops work during active collab. Only rewrite.apply is blocked by LIVE_CLIENTS_PRESENT — it would clobber in-flight Yjs edits.

When the loop breaks. If a mutation keeps failing after a fresh read and one retry, or state across reads looks inconsistent, call POST https://www.proofeditor.ai/api/bridge/report_bug with the failing request ID, slug, and raw response. The server enriches and files an issue.

Known Limitations (Web API)

• Bridge-style endpoints (/d/{slug}/bridge/*) require client version headers (x-proof-client-version, x-proof-client-build, x-proof-client-protocol) and return 426 CLIENT_UPGRADE_REQUIRED without them. Use /api/agent/{slug}/ops instead.

Local Bridge (macOS App)

Requires Proof.app running. Bridge at http://localhost:9847.

Required headers:

• X-Agent-Id: ai:galeharness-cli (identity for presence)
• Content-Type: application/json
• X-Window-Id: <uuid> (when multiple docs open)

Key Endpoints

Method	Endpoint	Purpose
GET	/windows	List open documents
GET	/state	Read markdown, cursor, word count
GET	/marks	List all suggestions and comments
POST	/marks/suggest-replace	{"quote":"old","by":"ai:galeharness-cli","content":"new"}
POST	/marks/suggest-insert	{"quote":"after this","by":"ai:galeharness-cli","content":"insert"}
POST	/marks/suggest-delete	{"quote":"delete this","by":"ai:galeharness-cli"}
POST	/marks/comment	{"quote":"text","by":"ai:galeharness-cli","text":"comment"}
POST	/marks/reply	{"markId":"<id>","by":"ai:galeharness-cli","text":"reply"}
POST	/marks/resolve	{"markId":"<id>","by":"ai:galeharness-cli"}
POST	/marks/accept	{"markId":"<id>"}
POST	/marks/reject	{"markId":"<id>"}
POST	/rewrite	{"content":"full markdown","by":"ai:galeharness-cli"}
POST	/presence	{"status":"reading","summary":"..."}
GET	/events/pending	Poll for user actions

Presence Statuses

thinking, reading, idle, acting, waiting, completed

Workflow: Review a Shared Document

When given a Proof URL like https://www.proofeditor.ai/d/abc123?token=xxx:

1. Extract the slug (abc123) and token from the URL
2. Read the document state via the API
3. Add comments or suggest edits using the ops endpoint
4. The author sees changes in real-time

# Read once and reuse the mutationBase token from that response
STATE=$(curl -s "https://www.proofeditor.ai/api/agent/abc123/state" \
  -H "x-share-token: xxx")
BASE=$(printf '%s' "$STATE" | jq -r '.mutationBase.token')
# Inspect doc fields from "$STATE" as needed...

# Comment
curl -X POST "https://www.proofeditor.ai/api/agent/abc123/ops" \
  -H "Content-Type: application/json" \
  -H "x-share-token: xxx" \
  -H "X-Agent-Id: ai:galeharness-cli" \
  -d "$(jq -n --arg base "$BASE" '{type:"comment.add",quote:"text",by:"ai:galeharness-cli",text:"comment",baseToken:$base}')"

# Suggest edit (tracked, pending)
curl -X POST "https://www.proofeditor.ai/api/agent/abc123/ops" \
  -H "Content-Type: application/json" \
  -H "x-share-token: xxx" \
  -H "X-Agent-Id: ai:galeharness-cli" \
  -d "$(jq -n --arg base "$BASE" '{type:"suggestion.add",kind:"replace",quote:"old",by:"ai:galeharness-cli",content:"new",baseToken:$base}')"

# Suggest and immediately apply (tracked, committed)
curl -X POST "https://www.proofeditor.ai/api/agent/abc123/ops" \
  -H "Content-Type: application/json" \
  -H "x-share-token: xxx" \
  -H "X-Agent-Id: ai:galeharness-cli" \
  -d "$(jq -n --arg base "$BASE" '{type:"suggestion.add",kind:"replace",quote:"old",by:"ai:galeharness-cli",content:"new",status:"accepted",baseToken:$base}')"

Workflow: Create and Share a New Document

# 1. Create
RESPONSE=$(curl -s -X POST https://www.proofeditor.ai/share/markdown \
  -H "Content-Type: application/json" \
  -d '{"title":"My Doc","markdown":"# Title\n\nContent here."}')

# 2. Extract URL and token
URL=$(echo "$RESPONSE" | jq -r '.tokenUrl')
SLUG=$(echo "$RESPONSE" | jq -r '.slug')
TOKEN=$(echo "$RESPONSE" | jq -r '.accessToken')

# 3. Bind display name via presence
curl -s -X POST "https://www.proofeditor.ai/api/agent/$SLUG/presence" \
  -H "Content-Type: application/json" \
  -H "x-share-token: $TOKEN" \
  -H "X-Agent-Id: ai:galeharness-cli" \
  -d '{"name":"GaleHarness CLI","status":"reading","summary":"Uploaded doc"}'

# 4. Share the URL
echo "$URL"

# 5. Make edits using the ops endpoint (baseToken required)
BASE=$(curl -s "https://www.proofeditor.ai/api/agent/$SLUG/state" \
  -H "x-share-token: $TOKEN" | jq -r '.mutationBase.token')
curl -X POST "https://www.proofeditor.ai/api/agent/$SLUG/ops" \
  -H "Content-Type: application/json" \
  -H "x-share-token: $TOKEN" \
  -H "X-Agent-Id: ai:galeharness-cli" \
  -d "$(jq -n --arg base "$BASE" '{type:"comment.add",quote:"Content here",by:"ai:galeharness-cli",text:"Added a note",baseToken:$base}')"

Workflow: Pull a Proof Doc to Local

Sync the current Proof doc state to a local markdown file. Used by:

• HITL review end-sync (references/hitl-review.md Phase 5) when the doc originated from a local file
• Ad-hoc snapshots of a Proof doc to disk (before closing the tab, archiving, handing off)
• Refreshing a local working copy against the live Proof version

SLUG=<slug>
TOKEN=<accessToken>
LOCAL=<absolute-path>

# One read to a temp file — avoids passing markdown through $(...), which would strip trailing newlines.
STATE_TMP=$(mktemp)
curl -s "https://www.proofeditor.ai/api/agent/$SLUG/state" \
  -H "x-share-token: $TOKEN" > "$STATE_TMP"
REVISION=$(jq -r '.revision' "$STATE_TMP")

# Atomic write: stream .markdown bytes directly to a temp sibling, then rename.
TMP="${LOCAL}.proof-sync.$$"
jq -jr '.markdown' "$STATE_TMP" > "$TMP" && mv "$TMP" "$LOCAL"
rm "$STATE_TMP"

jq -jr (-j no trailing newline, -r raw string) streams the markdown bytes straight to the temp file without going through a shell variable, so trailing newlines survive intact. mv within the same filesystem is atomic — a crashed write leaves the original untouched rather than a half-written file.

Confirm before writing when the pull isn't directly asked for. If a workflow ends up pulling as a side-effect of a different action (e.g., HITL review completion), surface the impending write with a short confirm like "Sync reviewed doc to <localPath>?" A silent overwrite is surprising — the user may have forgotten the local file exists in that session, or expected Proof to stay canonical until they explicitly asked to pull.

Safety

• Use /state content as source of truth before editing
• During active collab use edit/v2 (direct block changes) or suggestion.add (tracked changes); reserve rewrite.apply for no-client scenarios since it's blocked by LIVE_CLIENTS_PRESENT when anyone is connected
• Don't span table cells in a single replace
• Always include by: "ai:galeharness-cli" on every op and X-Agent-Id: ai:galeharness-cli in headers for consistent attribution
• Reuse baseToken from your most recent /state or /snapshot read; on token errors, re-read and retry once